一名维修工正在检查乘客电梯的设备。一名男子检查零件的磨损情况，以确保家庭住户的安全。工程师穿着制服，

ty worker inspects the equipment of a passenger elevator. The elevator doors are open, the engineer is making notes on the documentation. A man checks wear and tear on parts to ensure the safety of the home's occupants. Engineer in uniform and protective helmet. Elevator failure in a residential multi-storey or office building. A professional man takes inventory of elevator equipment. Construction and renovation concept. High quality vertical video