General items: Automotive parts and accessories manufacturing; automotive parts retail; automotive parts research and development; mechanical parts and components sales; mechanical equipment research and development; mold manufacturing; mold sales; hardware product manufacturing; hardware product retail; hardware product research and development; metal tool sales; metal product research and development; spray coating processing; machine tool functional parts and accessories manufacturing; machine tool functional parts and accessories sales; metal product sales; general equipment manufacturing (excluding special equipment manufacturing); general equipment repair; metal tool manufacturing; special equipment repair; electronic product sales; chemical product production (excluding licensed chemical products); chemical product sales (excluding licensed chemical products); general mechanical equipment installation services; industrial control computer and system manufacturing; industrial control computer and system sales; engineering and technology research and experimental development; industrial design services; technical services, technical development, technical consulting, technical exchange, technology transfer, technology promotion; import and export of goods; import and export of technology; import and export agency. Licensed items: Special equipment manufacturing; road motor vehicle production.