YUANENER

Props of metal; steel tubes; building materials of metal; rails of metal; straps of metal for handling loads; locks of metal for vehicles; strongboxes [metal or non-metal]; strap-hinges of metal; containers of metal [storage, transport]; containers of metal

Computer software, recorded; time recording apparatus; electro-dynamic apparatus for the remote control of signals; voltage regulators for electric power; converters, electric; electric transformers; supercapacitors for energy storage; piezoelectric switches; power station automation equipment; batteries