Machining of mechanical parts and components; Mold manufacturing; Railway rolling stock parts sales; Non-ferrous metal casting; Plastic products manufacturing; CNC machine tool manufacturing; CNC machine tool sales; Sales of mechanical parts and components; Plastic processing special equipment manufacturing; Plastic processing special equipment sales; Foundry machinery manufacturing; Foundry machinery sales; Professional design services; Engineering technical services (excluding planning management, survey, design, and supervision); Technical services, technology development, technical consulting, technology exchange, technology transfer, technology promotion; High-performance fiber and composite material manufacturing; Metal structure manufacturing; Motor manufacturing. Licensed items: Road freight transport (excluding dangerous goods).