old iron chain hoist with hook moving on rails in hangar. bottom view of the industrial shop with a mechanical jack. crane hook in

hoisting industrial chain factory old weight equipment warehouse hook iron hang manufacturing leverage chains overhead fasteners pulley winch elevator high hangar gear manufactory technology retro control block reel machine background metal work vintage closeup black white machinery lift heavy tool engineering crane construction lifting rust hoist industry strength strong steel moving rails bottom view shop mechanical jack hanging inside glass roof