construction construction machinery construction people construction site crane crew heavy duty heavy objects HSE lifting machines mobile crane operating people at work safety safety precaution supervising working break brown business chairs church closed cloth comfort comfortable confession couch desk empty flat furniture hall hard heavy holland inside interior isolated large leisure nobody object office old outdated pray relax rest retro room row seat service soft sun table vacant waiting white wood wooden abstract background backgrounds barrel build connect drain gay gender group industrial industry infrastructure iron liner material materials metal metallic objects pattern pile pink pipe pipeline pipes plant plumbing project queer repair round rust rusty sewer shabby site steel street technology tube tubing Underground used water wear work