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Hydraulic excavator, heavy equipment, engineering drilling tool, construction work, digging, demolition and traction machine, earthmoving, large power motor
Bulldozer lifting and packing sand, gravel and aggregate, front view of a Saudi Arabian Gulf construction worker wearing helmet and protective vest supervising the work of heavy machinery and equipment for large buildings and structures, engineering and construction concept, industrial engineering jobs and professions in Saudi Arabia
Industrial engineering professions and jobs in Saudi Arabia, a bulldozer working to lift and fill sand, gravel and rubble, a picture from the back of two Saudi Gulf Arab construction workers wearing helmets and protective vests supervising the work of heavy machinery and equipment for large buildings and structures, the concept of engineering and construction
Reliance on heavy machinery and equipment in construction work, industrial engineering professions and jobs in the Kingdom of Saudi Arabia, a large bulldozer working in digging and lifting rubble and dirt at the work site, the concept of architectural and construction engineering, improving the infrastructure for the construction of modern buildings and projects
The concept of large construction and building projects, hydraulic bulldozers doing mining work to transport and empty soil in mountainous areas in the Kingdom of Saudi Arabia, industrial engineering professions and jobs, using heavy machinery and equipment in rugged areas during the day
Improving the infrastructure for the construction of modern buildings and projects, the concept of architectural and construction engineering, a large bulldozer working in digging and lifting rubble and dirt at the work site, relying on heavy machinery and equipment in construction work, industrial engineering professions and jobs in the Kingdom of Saudi Arabia
A bulldozer working to lift and fill sand, gravel and rubble, a picture from the back of a Saudi Arabian Gulf construction worker wearing a helmet and a protective vest supervising the work of heavy machinery and equipment for buildings and large structures, the concept of engineering and construction, industrial engineering professions and jobs in Saudi Arabia
Hydraulic bulldozers doing mining work to transport and empty soil in mountainous areas in the Kingdom of Saudi Arabia, the concept of large construction and building projects, industrial engineering professions and jobs, using heavy machinery and equipment in rugged areas during the day
Machinery, heavy equipment, cranes and high scaffolding, the concept of structural and architectural engineering, a building under construction in the Kingdom of Saudi Arabia, construction work, pouring concrete and laying foundations, implementing the reconstruction plan and forming the metal structure, a tower under construction using modern mechanisms
Reliance on heavy machinery and equipment in construction work, industrial engineering professions and jobs in the Kingdom of Saudi Arabia, a large bulldozer working in digging and lifting rubble and dirt at the work site, the concept of architectural and construction engineering, improving the infrastructure for the construction of modern buildings and projects
The concept of engineering and construction, industrial engineering professions and jobs in Saudi Arabia, a bulldozer working to lift and fill sand, gravel and rubble, a picture from the back of a Saudi Arabian Gulf construction worker wearing a helmet and a protective vest supervising the work of heavy machinery and equipment for large buildings and structures.
Hydraulic bulldozers doing mining work to transport and empty soil in mountainous areas in the Kingdom of Saudi Arabia, the concept of large construction and building projects, industrial engineering professions and jobs, using heavy machinery and equipment in rugged areas during the day
The concept of large construction and building projects, a hydraulic bulldozer doing one of the mining works to transport and empty soil in mountainous areas in the Kingdom of Saudi Arabia, industrial engineering professions and jobs, using heavy machinery and equipment in rugged areas during the day
A bulldozer working to lift and fill sand, gravel and rubble, a picture from the back of a Saudi Arabian Gulf construction worker wearing a helmet and a protective vest supervising the work of heavy machinery and equipment for buildings and large structures, the concept of engineering and construction, industrial engineering professions and jobs in Saudi Arabia
Construction work, pouring concrete and laying foundations, a building under construction in the Kingdom of Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, the concept of structural and architectural engineering, implementing the reconstruction plan and forming the metal structure, a tower under construction using modern mechanisms
Bulldozer lifting and packing sand, gravel and aggregate, back view of a Saudi Arabian Gulf engineer wearing a safety helmet supervising the work of heavy machinery and equipment for large buildings and structures, engineering and construction concept, industrial engineering jobs and professions in Saudi Arabia
Implementing the reconstruction plan and forming the metal structure, construction work, pouring concrete and laying foundations, a building under construction in the Kingdom of Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, the concept of structural and architectural engineering, a tower under construction using modern mechanisms
The development and growth of the engineering sector in the Kingdom, supervising projects at night inside the work site, a picture from the back of a Saudi Arabian Gulf civil engineer wearing a protection jacket and helmet, Saudi engineering professions and jobs
Construction work, pouring concrete and laying foundations, a building under construction in the Kingdom of Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, the concept of structural and architectural engineering, implementing the reconstruction plan and forming the metal structure, a tower under construction using modern mechanisms
A large bulldozer working in digging and lifting rubble and dirt at the work site, reliance on heavy machinery and equipment in construction work, industrial engineering professions and jobs in the Kingdom of Saudi Arabia, the concept of architectural and construction engineering, improving the infrastructure for the construction of modern buildings and projects
Construction works, concrete pouring and foundation laying, implementation of reconstruction plan and metal structure formation, building under construction in Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, concept of structural and architectural engineering, tower under construction using modern machinery
A large bulldozer working in digging and lifting rubble and dirt at the work site, reliance on heavy machinery and equipment in construction work, industrial engineering professions and jobs in the Kingdom of Saudi Arabia, the concept of architectural and construction engineering, improving the infrastructure for the construction of modern buildings and projects
The concept of large construction and building projects, industrial engineering professions and jobs, the use of heavy machinery and equipment in rugged areas during the day, hydraulic bulldozers performing one of the mining works to transport and empty soil in mountainous areas in the Kingdom of Saudi Arabia
The concept of structural and architectural engineering, a building under construction in the Kingdom of Saudi Arabia, construction works, pouring concrete and laying foundations, implementing the construction plan and forming the metal structure, heavy machinery and equipment, cranes and high scaffolding, a tower under construction using modern machinery
Use of heavy machinery and equipment in rugged areas during the day, hydraulic bulldozers doing mining work to transport and empty soil in mountainous areas in the Kingdom of Saudi Arabia, the concept of large construction and building projects, industrial engineering professions and jobs
Concept of architecture and construction, a large bulldozer working in digging and lifting rubble and dirt at the work site, reliance on heavy machinery and equipment in construction work, industrial engineering professions and jobs in the Kingdom of Saudi Arabia, improving the infrastructure for the construction of modern buildings and projects
The concept of structural and architectural engineering, a building under construction in the Kingdom of Saudi Arabia, construction works, pouring concrete and laying foundations, implementing the construction plan and forming the metal structure, a tower under construction using modern machinery, heavy machinery and equipment, cranes and high scaffolding
Heavy machinery and equipment, cranes and high scaffolding, concept of structural and architectural engineering, building under construction in Saudi Arabia, construction works, concrete pouring and foundation laying, implementation of construction plan and forming of metal structure, tower under construction using modern machinery
Urban development concept, skyscraper under construction in Saudi Arabia, implementation of the reconstruction plan by forming the basic structure of the building, heavy machinery and equipment, cranes and high scaffolding, concept of structural and architectural engineering, tower under construction using modern machinery
The concept of structural and architectural engineering, a building under construction in the Kingdom of Saudi Arabia, construction works, pouring concrete and laying foundations, implementing the construction plan and forming the metal structure, heavy machinery and equipment, cranes and high scaffolding, a tower under construction using modern machinery
Machinery, heavy equipment, cranes and high scaffolding, the concept of structural and architectural engineering, a building under construction in the Kingdom of Saudi Arabia, construction work, pouring concrete and laying foundations, implementing the reconstruction plan and forming the metal structure, a tower under construction using modern mechanisms
Saudi engineering professions and jobs, development and growth of the engineering sector in the Kingdom, supervising projects at the work site, close-up side view of a Saudi Arabian Gulf engineer wearing a safety jacket and helmet looking at engineering constructions
Building the main façade and implementing the reconstruction plan by forming the basic structure of the building, a skyscraper under construction in the Kingdom of Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, the concept of structural and architectural engineering, a tower under construction using modern mechanisms
Natural coal mines, areas for prospecting for underground resources, rocky nature and terrain of mountain ranges, highlands and mountain peaks in the Kingdom of Saudi Arabia, large bulldozers working at the mining site, removing soil and rocks and transporting them away
Building under construction in Saudi Arabia, construction works, concrete pouring and foundation laying, implementation of construction plan and metal structure formation, heavy machinery and equipment, cranes and high scaffolding, concept of structural and architectural engineering, tower under construction using modern machinery
Civilization, development and urban progress in the Kingdom of Saudi Arabia, a group of residential buildings under construction, improving and developing the infrastructure, the concept of structural and architectural engineering, implementing the reconstruction plan and forming the metal structure, construction cranes, pouring concrete and laying foundations
Building under construction in Saudi Arabia, construction works, concrete pouring and foundation laying, implementation of construction plan and metal structure formation, heavy machinery and equipment, cranes and high scaffolding, concept of structural and architectural engineering, tower under construction using modern machinery
The concept of large construction and building projects, a hydraulic bulldozer doing one of the mining works to transport and empty soil in mountainous areas in the Kingdom of Saudi Arabia, industrial engineering professions and jobs, using heavy machinery and equipment in rugged areas during the day
A bulldozer working to lift and fill sand and gravel during the day, the concept of engineering, construction and development, engineering professions and jobs in Saudi Arabia, sand assembly plant and huge machines, the strength and technology of the process of extracting building materials, heavy machinery and equipment
Construction and concrete pouring work, close up of a Saudi Arabian Gulf engineer wearing a safety jacket and helmet walking beside a concrete mixer truck, supervising construction and laying foundations, heavy machinery and equipment in Saudi Arabia, concept of construction and architectural engineering
Building under construction in Saudi Arabia, Heavy machinery and equipment, cranes and high scaffolding, Concept of structural and architectural engineering, Construction works, concrete pouring and foundation laying, Implementation of construction plan and formation of metal structure, Tower under construction using modern machinery
Construction works, concrete pouring and foundation laying, implementation of reconstruction plan and metal structure formation, building under construction in Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, concept of structural and architectural engineering, tower under construction using modern machinery
A skyscraper under construction in the Kingdom of Saudi Arabia, building the main facade and implementing the reconstruction plan by forming the basic structure of the building, heavy machinery and equipment, cranes and high scaffolding, the concept of structural and architectural engineering, a tower under construction using modern mechanisms
Working in the field of structural engineering, supervising the progress of excavation and construction works, a side view of a Saudi Arabian Gulf engineer following up on plans at the work site, wearing a protective helmet, following up on the implementation of architectural projects, Saudi professions and jobs
A hydraulic bulldozer performs a mining operation to transport and empty soil in mountainous areas in the Kingdom of Saudi Arabia, industrial engineering jobs and professions, using heavy machinery and equipment in rugged areas during the day, the concept of large construction and building projects
Working in the field of structural engineering, supervising the progress of excavation and construction works, a picture from the back of a Saudi Arabian Gulf engineer following up on plans at the work site, wearing the work protective clothing and helmet, following up on the implementation of architectural projects, Saudi professions and jobs
Development and growth of the engineering sector in the Kingdom, supervising projects on the work site, a picture from the back of a young Saudi Arabian Gulf civil engineer wearing a protective jacket and helmet, Saudi engineering professions and jobs, drilling and construction machines at the construction site
The concept of structural and architectural engineering, a building under construction in the Kingdom of Saudi Arabia, construction works, pouring concrete and laying foundations, implementing the construction plan and forming the metal structure, heavy machinery and equipment, cranes and high scaffolding, a tower under construction using modern machinery
New projects in Saudi Arabia, side view of two Saudi Arabian Gulf engineers standing on the work site supervising the work plans at sunset, concept of real estate and engineering development, building strategic plans and residential contracting
Reliance on heavy machinery and equipment in construction work, industrial engineering professions and jobs in the Kingdom of Saudi Arabia, a large bulldozer working in digging and lifting rubble and dirt at the work site, the concept of architectural and construction engineering, improving the infrastructure for the construction of modern buildings and projects
Industrial engineering jobs and careers in Saudi Arabia, bulldozer lifting and filling rubble at sunset, silhouette of a group of Saudi Arabian Gulf engineers supervising a work site, engineering, construction and development concept, heavy machinery and equipment, salute
Saudi urban development and progress, improving and developing infrastructure in the Kingdom of Saudi Arabia, the concept of structural and architectural engineering, implementing the construction plan and forming the metal structure, construction crane and pouring concrete over a modern building under construction
The concept of structural and architectural engineering, a building under construction in the Kingdom of Saudi Arabia, construction works, pouring concrete and laying foundations, implementing the construction plan and forming the metal structure, heavy machinery and equipment, cranes and high scaffolding, a tower under construction using modern machinery
Implementation of the reconstruction plan and formation of the metal structure, civilization, development and urban progress in the Kingdom of Saudi Arabia, an aerial photo of a group of residential buildings under construction, improving and developing the infrastructure, the concept of structural and architectural engineering, construction cranes, pouring concrete and laying foundations
Follow up on the implementation of architectural projects, work in the field of structural engineering, supervision of the progress of excavation and construction works, close-up image of a Saudi Arabian Gulf engineer following up on plans at the work site, Saudi professions and jobs
A close-up of two Saudi working engineers standing on cement stones and carrying a blueprint for a construction project for planning and implementation in the Kingdom of Saudi Arabia, supervising the work, wearing a work protection jacket, checking the wo
A large bulldozer working in digging and lifting rubble and dirt at the work site, reliance on heavy machinery and equipment in construction work, industrial engineering professions and jobs in the Kingdom of Saudi Arabia, the concept of architectural and construction engineering, improving the infrastructure for the construction of modern buildings and projects
Reliance on heavy machinery and equipment in construction work, industrial engineering professions and jobs in the Kingdom of Saudi Arabia, a large bulldozer working in digging and lifting rubble and dirt at the work site, the concept of architectural and construction engineering, improving the infrastructure for the construction of modern buildings and projects
Construction, contracting and real estate development, establishing the foundations for residential projects, building construction and mega projects in the Kingdom of Saudi Arabia, close-up of a Saudi Arabian Gulf worker wearing a helmet and a protective vest pouring concrete at a construction site, youth professions and jobs
Implementing the reconstruction plan and forming the metal structure, construction work, pouring concrete and laying foundations, a building under construction in the Kingdom of Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, the concept of structural and architectural engineering, a tower under construction using modern mechanisms
Close up of a construction worker building a brick and cement wall, brick mold, construction work, stone wall, construction tools and equipment
Concept of architecture and construction, a large bulldozer working in digging and lifting rubble and dirt at the work site, reliance on heavy machinery and equipment in construction work, industrial engineering professions and jobs in the Kingdom of Saudi Arabia, improving the infrastructure for the construction of modern buildings and projects
Concrete construction site under construction, Saudi urban development and progress, improvement and development of infrastructure in the Kingdom of Saudi Arabia, concept of structural and architectural engineering, implementation of the construction plan and formation of the metal structure
Silhouette of a building under construction in Saudi Arabia, concept of structural and architectural engineering, group of workers implementing the construction plan and forming the metal structure, construction works, pouring concrete and laying foundations, heavy machinery and equipment, cranes and high scaffolding, Saluit
Drilling and construction equipment at the construction site, Saudi engineering professions and jobs, supervising projects at the work site, development and growth of the engineering sector in the Kingdom, close-up side view of a Saudi Arabian Gulf engineer wearing a protective jacket and helmet holding a tablet, using modern technical devices
Supervising projects on the work site, development and growth of the engineering sector in the Kingdom, a back view of a Saudi Arabian Gulf engineer wearing a safety jacket and helmet, Saudi engineering professions and jobs, working at the construction site at sunset
Construction of the main facade and implementation of the reconstruction plan by forming the basic structure of the building, a future skyscraper under construction in the Kingdom of Saudi Arabia, heavy machinery and equipment, cranes and scaffolding, the concept of structural and architectural engineering, a tower under construction using modern machinery
Group of workers carrying out construction plan and forming metal structure, construction works, pouring concrete and laying foundations, heavy machinery and equipment, cranes and high scaffolding, silhouette of a building under construction in Saudi Arabia, concept of structural and architectural engineering, Salouet
Hydraulic excavator, heavy equipment, engineering drilling tool, construction work, digging, demolition and traction machine, earthmoving, large power motor
Construction works, concrete pouring and foundation laying, heavy machinery and equipment, cranes and high scaffolding, building under construction in Saudi Arabia, concept of structural and architectural engineering, implementation of construction plan and formation of metal structure
Industrial engineering jobs and professions in Saudi Arabia, a bulldozer lifting and filling rubble at sunset, a picture of a group of Saudi Arabian Gulf engineers supervising the work site, the concept of engineering, construction and development, the use of heavy and advanced machinery and equipment
Construction works, concrete pouring and foundation laying, heavy machinery and equipment, building under construction in UAE, concept of structural and architectural engineering, implementation of construction plan and formation of metal structure, urban development and progress
Use of heavy machinery and equipment in rugged areas during the day, a hydraulic bulldozer doing mining work to transport and empty soil in mountainous areas in the Kingdom of Saudi Arabia, the concept of large construction and building projects, industrial engineering professions and jobs
Implementation of the construction plan and forming the metal structure, construction works, pouring concrete and laying foundations, heavy machinery and equipment, cranes and high scaffolding, the concept of structural and architectural engineering, a yellow crane lifting materials at the construction site, the use of modern machinery in Saudi Arabia
The concept of large construction and building projects, a hydraulic bulldozer doing one of the mining works to transport and empty soil in mountainous areas in the Kingdom of Saudi Arabia, industrial engineering professions and jobs, using heavy machinery and equipment in rugged areas during the day
Famous landmarks and tourist places, a view of the sky filled with white clouds, residential buildings in the Kingdom of Saudi Arabia, backfill mounds and construction waste, a close-up photo of accumulations of stones and sand in Mecca.
Urban growth and progress of residential buildings and buildings, mountain peaks and heights, hotels and tourist resorts, backfill hills and construction waste, towers and skyscrapers in Mecca, roads and streets in Saudi Arabia, a view of the sky filled with white clouds.
Implementing the reconstruction plan and forming the metal structure, construction work, pouring concrete and laying foundations, a building under construction in the Kingdom of Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, the concept of structural and architectural engineering, a tower under construction using modern mechanisms
Saudi engineering jobs and professions, drilling and construction machinery at the construction site, development and growth of the engineering sector in the Kingdom, supervising projects at the work site, a picture from the back of a young Saudi Arabian Gulf civil engineer wearing a protective jacket and helmet
The concept of structural and architectural engineering, heavy machinery and equipment, cranes and high scaffolding, a building under construction in the Kingdom of Saudi Arabia, construction work, pouring concrete and laying foundations, implementing the reconstruction plan and forming the metal structure, a tower under construction using modern mechanisms
Implementing the reconstruction plan and forming the metal structure, construction work, pouring concrete and laying foundations, a building under construction in the Kingdom of Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, the concept of structural and architectural engineering, a tower under construction using modern mechanisms
A building under construction in the Kingdom of Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, the concept of structural and architectural engineering, construction work, pouring concrete and laying foundations, implementing the reconstruction plan and forming the metal structure, a tower under construction using modern mechanisms
Construction and contracting works, laying foundations, improving the country's infrastructure, heavy machinery and equipment, cranes and bulldozers, a building under construction in Saudi Arabia, a back view of a Saudi Arabian Gulf engineer wearing a helmet and a safety vest observing the progress of work
Development and growth of the engineering sector in the Kingdom, supervising projects on the work site, a picture from the back of a young Saudi Arabian Gulf civil engineer wearing a protective jacket and helmet, Saudi engineering professions and jobs, drilling and construction machines at the construction site
Supervising the progress of excavation and construction work, working in the field of structural engineering, a picture from the back of a Saudi Gulf Arab engineer following up on plans at the work site, wearing the orange work uniform and a protective helmet, following up on the implementation of architectural projects, Saudi professions and jobs
Working in the field of structural engineering, supervising the progress of excavation and construction works, a picture from the back of a Saudi Arabian Gulf engineer following up on plans at the work site, wearing the work protective clothing and helmet, following up on the implementation of architectural projects, Saudi professions and jobs
Close up of a construction worker building a brick and cement wall, brick mold, construction work, stone wall, construction tools and equipment
Heavy machinery and equipment, cranes and high scaffolding, construction works, concrete pouring and foundation laying, building under construction in Saudi Arabia, concept of structural and architectural engineering, implementation of construction plan and forming of metal structure, 3D holographic background
Building under construction in Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, concept of structural and architectural engineering, construction works, concrete pouring and foundation laying, implementation of construction plan and metal structure formation
Industrial engineering jobs and professions, use of heavy machinery and equipment in rugged areas during the day, hydraulic bulldozers doing mining work to transport and empty soil in mountainous areas in the Kingdom of Saudi Arabia, concept of large construction and building projects
Construction works, concrete pouring and foundation laying, implementation of reconstruction plan and metal structure formation, building under construction in Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, concept of structural and architectural engineering, tower under construction using modern machinery
Engineering professions and jobs, supervising the work plan, establishing foundations and structures for residential projects, construction, contracting and real estate development works, constructing buildings and mega projects, silhouette of two Saudi Arabian Gulf engineers wearing a suit and a protective helmet working on a construction site
Use of heavy machinery and equipment in rugged areas during the day, hydraulic bulldozers doing mining work to transport and empty soil in mountainous areas in the Kingdom of Saudi Arabia, the concept of large construction and building projects, industrial engineering professions and jobs
Engineering professions and jobs, construction, contracting and real estate development work, creating foundations and structures for residential projects and factories, constructing buildings and huge projects, a silhouette of a Saudi Gulf Arab engineer working on the construction site, supervising the progress of the work plan
Drilling and construction equipment at construction site, development and growth of engineering sector in the Kingdom, supervision of projects at work site, back view of young Saudi Arabian Gulf civil engineer wearing protective jacket and helmet, Saudi engineering professions and jobs
Use of modern machinery in Saudi Arabia, implementation of reconstruction plan, construction works, pouring concrete and laying foundations, heavy machinery and equipment, cranes and high scaffolding, concept of structural and architectural engineering, silhouette of a building under construction with a sky full of clouds
Concrete construction site under construction, Saudi urban development and progress, improvement and development of infrastructure in the Kingdom of Saudi Arabia, concept of structural and architectural engineering, implementation of the construction plan and formation of the metal structure
The concept of improving the country's infrastructure, construction, contracting and real estate development, establishing foundations and structures for residential projects and factories, architectural and urban development in the Kingdom of Saudi Arabia, construction of buildings and mega projects
Concept of structural and architectural engineering, group of workers implementing construction plan and forming metal structure, construction works, pouring concrete and laying foundations, heavy machinery and equipment, cranes and high scaffolding, silhouette of a building under construction in Saudi Arabia, Saluit
Construction work, pouring concrete and laying foundations, a building under construction in the Kingdom of Saudi Arabia, heavy machinery and equipment, cranes and high scaffolding, the concept of structural and architectural engineering, implementing the reconstruction plan and forming the metal structure, a tower under construction using modern mechanisms
Monitoring and supervising the receipt and transfer of storage containers, import and export of goods in the Kingdom of Saudi Arabia, a picture from behind of a Saudi Gulf Arab man at the port of shipping goods and commercial containers, purple background.
Construction, contracting and real estate development works, foundations and structures for residential projects and factories, the concept of teamwork and cooperation in performing tasks, construction of buildings and large projects, Saudi Arabian Gulf workers working on a construction site at sunset
Construction cranes are working on building a new facility in Saudi Arabia, Infrastructure development concept, Implementation of construction plan and metal structure formation, Heavy machinery and equipment, Cranes and high scaffolding, Construction and concrete pouring works
The concept of improving the country's infrastructure, construction, contracting and real estate development, establishing foundations and structures for residential projects and modern factories, architectural and urban development in the Kingdom of Saudi Arabia, constructing buildings and mega projects, erecting contemporary towers and skyscrapers
Building under construction in Saudi Arabia, construction works, concrete pouring and foundation laying, implementation of construction plan and metal structure formation, heavy machinery and equipment, cranes and high scaffolding, concept of structural and architectural engineering, tower under construction using modern machinery
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