Mechanical equipment (except special equipment and agricultural machinery), mold processing (limited to branch operations), engaged in technology development, technical consulting, technical services, technology transfer in the fields of mechanical technology and electrical technology, wholesale and retail of electrical equipment, electronic products, electromechanical equipment, metal materials, Wujinjiaodian, pipe fittings, valves, communication equipment (except satellite TV broadcast ground receiving facilities), instruments, auto parts, motorcycle parts, hardware tools, measuring tools, design and construction of building decoration and construction projects, and cargo transportation agency. [Projects that require approval according to law can only be carried out with approval from relevant departments]