Hardware product manufacturing; Hardware product retail; Construction metal accessories manufacturing; Construction metal accessories sales; Furniture spare parts production; Furniture spare parts sales; Auto parts and accessories manufacturing; Auto parts and accessories retail; Motorcycle spare parts manufacturing; Motorcycle and spare parts retail; Off-highway recreational vehicle and spare parts manufacturing; Off-highway recreational vehicle and spare parts sales; Plastic product manufacturing; Plastic product sales; Mold manufacturing; Mold sales; General equipment manufacturing (excluding special equipment manufacturing); Mechanical equipment sales; Metal cutting machine tool manufacturing; Metal Sales of cutting machine tools; manufacturing of fans and fans; sales of fans and fans; manufacturing of building decoration, plumbing pipe parts and other metal products for construction; manufacturing of refrigeration and air-conditioning equipment; sales of refrigeration and air-conditioning equipment; manufacturing of security equipment; sales of security equipment; manufacturing of pneumatic power machinery and components; sales of pneumatic power machinery and components; business of wires and cables; sales of optical cables; sales of power electronic components; household appliance installation services; environmental sanitation and public facility installation services; general machinery and equipment installation services; technology import and export; goods import and export. Licensed items: sales of protective equipment for civil air defense projects; installation of protective equipment for civil air defense projects.