construction of a house, tools for construction, a monolithic multi-storey concrete house, supports for a safety lock

activity apartment architecture background blue brick buildingbackground built business cable cargo cloudy commercial concrete construction constructionicon crane cranes design development engineer engineering equipment erect erection estate exterior for hoist hoisting hook house industrial industrialbackground industry lift lifting machine modern monolithic moving multistorey project real safety scaffolding site sky steel structure supports tools urban work workplace yellow