Fastener manufacturing; Fastener sales; Mold manufacturing; Mold sales; Forgings and powder metallurgy products manufacturing; Forgings and powder metallurgy products sales; Hardware product manufacturing; Hardware product wholesale; Hardware product retail; Auto parts and accessories manufacturing; Auto parts wholesale; Auto parts retail; Motorcycle parts manufacturing; Motorcycles and spare parts. Wholesale of accessories; retail of motorcycles and spare parts; processing of mechanical parts and components; sales of mechanical parts and components; manufacturing of metal materials; sales of metal materials; manufacturing of plastic products; sales of plastic products; manufacturing of rubber products; sales of rubber products; manufacturing of metal chains and other metal products; sales of metal products; manufacturing of new energy prime mover equipment Manufacturing; sales of new energy prime mover equipment; solar power generation technical services; manufacturing of photovoltaic equipment and components; sales of photovoltaic equipment and components; manufacturing of special equipment for semiconductor devices; sales of special equipment for semiconductor devices; recycling and secondary utilization of used power batteries for new energy vehicles (excluding hazardous waste operations); production of battery spare parts; batteries Sales of spare parts; battery manufacturing; battery sales; electric motor manufacturing; gas compression machinery manufacturing; gas compression machinery sales; motor manufacturing; power transmission, distribution and control equipment manufacturing; resource recycling technology research and development; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; import and export of goods; import and export of technology.