北京首都机场候机楼红色顶棚特写

a welder is welding steel on a steel roof truss. working at height equipment. fall arrestor device for worker with hooks for safety body harness. worker in construction site.

钢结构厂房全景和带有栏杆的绿色走道

structure of steel  for building construction on sky background.

a welders on risk areas. steel roof truss welders with safety devices to prevent falls from a height in the construction site.

steel beams production. metal girders stack on project construction blueprints background, copy space. 3d illustration

metal products icons set.  steel structure and pipe. outline signs for metallurgy products, construction industry. lines with editable stroke

texture of steel deformed or bars background deformed steel bars for reinforced concrete, metal texture close up reinforcement steel rod and deformed bar with rebar at construction site.

steel structure architecture construction abstract background

厂区内钢结构和笔直的交通要道

steel beams production. metal girders stack on project construction blueprints background, copy space. 

湖南岳阳洞庭湖畔码头的钢结构

construction workers fabricating steel reinforcement bar at the construction site

中国福州市福道城市环山地生态步行道

the steel structure of the glass wall in beijing

steel beams with rivets and screws forming the compilicated construction of the historic “müngstener brücke“ railway bridge in solingen germany from 1897. frog perspective in black and white.

in the construction site, steel structure is under construction

steel framing and beams structural elements for new building against blue sky from low point of view.

industrial worker labourer at the factory welding steel structure

广州明珠湾海面上建设中的跨海大桥

structure of steel roof frame for building construction on sky background.

steel products, thin line icon set. outline symbol collection. editable vector stroke. 256x256 pixel perfect scalable to 128px, 64px...

steel roof structure for building construction. metal roof structure of a building under construction on a blue sky background with white clouds. selective focus

details of the construction of a steel industrial warehouse with reinforced concrete walls

asian male construction worker working at height on steel frame wear safety gear and safety harness to work at high heights at the construction site.

观景台上奇特景观建筑和地面上的露营草坪

steel truss girder, metal construction structure for billboard, steel truss gird background

structure of steel roof frame installation by mobile crane under the building in construction with blue sky 

中国广西南宁邕江上的永和大桥和周边建筑物

heavy industry engineering factory interior with industrial worker using angle grinder and cutting a metal tube. contractor in safety uniform and hard hat manufacturing metal structures.

大型公共场所钢结构吊顶满画幅背景

construction workers put on safety gear to work on the way to install the factory roof welding structure.

metal structure of bridge construction. steel fastening equipment. istanbul, kadikoy. turkey.

set 5 of metal parts for metal structures. 3d vector illustration

close up interior steel structure geometric shape  abstract pattern warehouse building minimal style

现代化建筑外墙，使用金属钢结构，可用作背

steel pipes group for industry  material product of engineering  construction factory equipment iron tubes metal warehouse industrial 

light mouth steel channel or c channel steel for construction materials. c-shaped steel structure. construction of a factory house building.

aerial view of warehouse construction from steel metal structure. frame of modern hangar or factory construction site.

中国浙江杭州滨江区白马湖公园钢结构观景台

warehouse construction from metal structure. industrial building on light gauge steel framing. frame of modern hangar or factory. construction site with steel structure warehouse. top view on a roof.

stacked steel pipes with rectangular cross-section, close-up monochrome photo with selective focus

industrial abstract for background, backdrop, welding and manufacturing. 

aluminium or steel profiles background. stack of alumunium or steel profiles. 3d illustration

metal pole pillars set, steel pipes of different diameters bolted on round base isolated on white background. cylinder footings for road sign, banner, billboard. realistic 3d vector illustration

welder is welding added joint a pipe carbon for steel structure work with process flux cored arc welding(fcaw) and dressed properly with personal protective equipment(ppe) for safety.

products of the plant for the production of metal structures. welded i-beam

vector illustration of steel structure roof truss under building construction

assortment steel profiles in steel fabrication shop

creative vector illustration of steel truss girder, chrome pipes isolated on transparent background. art design horizontal metal construction structure for billboard. abstract concept graphic element

steel roof truss welders with safety devices to prevent falls from a height in the construction site.

stainless steel pipes in an industrial warehouse

grunge rusty orange brown metal corten steel stone background texture

support above the bridge, steel structure close-up.

warehouse metal structure. detail of industrial warehouse construction with steel structure under construction on clear sky background. selective focus

white stage and speaker with spotlight on the truss system on the white background

coal fire power plant under construction. 

steel structure workshop is under construction 

steel structure architecture detail abstract background

structure building of steel structure roof truss frame installation by mobile crane under the construction building in the factory with blue sky

bridge construction metal sheet structure pattern architecture details

welder in iron mask helmet welds with electric arc steel welding, industrial worker at the factory welding steel structure, welder is welding metalwork manufacturing construction maintenance service.

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