tower crane assembly lifting device installation construction site |
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| navigate by keyword : activity architecture assembling background blue boom bottom building business cab cabin chimney civil closeup clouds concrete construct construction counterweight crane cranes danger depth design detail development device disassembling engineering equipment erecting field frame full heavy height heights high hoist hydraulic industrial industry installation jib lift light machine machinery mechanical metal mobile orange person red rope site sky skyline space steel structure sunny tall technical technology telescopic tower truss vehicle view warning weight white winch wire work working yellow |
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| Placing a concrete counterweight by high telescopic boom of yellow mobile hoist machine. Blue sky. Bottom view. Building industry |
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