Foundry machinery manufacturing; Non-ferrous metal alloy manufacturing; Metal material manufacturing; Metal tool manufacturing; Metal surface treatment and heat treatment processing; Ferrous metal casting; Non-ferrous metal casting; Electroplating processing; Quenching processing; Spray coating processing; Electrophoretic coating processing; Cutting tool manufacturing; Automobile wheel hub manufacturing; Metal processing machinery manufacturing; General parts manufacturing; Mechanical parts and components processing; General equipment manufacturing (excluding special equipment manufacturing); Car washing equipment manufacturing; Mold manufacturing; Mold sales; Electric vehicle manufacturing; Automotive parts and accessories manufacturing; Automotive parts remanufacturing; Generator and generator set manufacturing; Battery parts production; Foundry molding material production; Hardware product manufacturing; Technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; Import and export of goods; Import and export of technology; High-speed rail equipment and accessories manufacturing; Railway rolling stock parts manufacturing; Mechanical equipment sales; Metal product sales; Mechanical parts and components sales; Foundry machinery sales; Non-ferrous metal alloy sales; Park management services; Non-residential real estate leasing; Storage equipment leasing services