Battery manufacturing; Non-ferrous metal alloy manufacturing; Non-ferrous metal alloy sales; Battery sales; Battery spare parts production; Battery spare parts sales; Electric bicycle sales; Mechanical and electrical equipment manufacturing; Mechanical and electrical equipment sales; Battery rental; Motorcycle spare parts manufacturing; Motorcycle and spare parts wholesale; Motorcycle and spare parts retail; Motorcycle and spare parts R&D; Auto parts and spare parts manufacturing; Technical services, technology Technology development, technical consulting, technical exchange, technology transfer, technology promotion; plastic product manufacturing; plastic product sales; plastic processing special equipment manufacturing; plastic processing special equipment sales; plastic packaging boxes and container manufacturing; import and export of goods; hardware product retail; hardware product wholesale; hardware product manufacturing; non-residential real estate leasing; packaging materials and product sales; auto parts wholesale; auto parts retail.