A Crane Hook And Chain On Top Of A Building Site Roof Elevation. Concept For Scaffolding,Construction,Frameworks,Engineering,Architecture And Industry.

KEYWORDS

crane lifting hook chain construction site building scaffold scaffolding scaffolds winch machinery lift tube clamp architect architecture background boards build builder business cable city company engineering equipment framework hang heavy industrial industry infrastructure job metal outdoor project rods safety sky staging steel strength technology tool transporting work top roof elevation concept frameworks elevation