Manufacturing, processing and sales: metal castings, automobile parts (excluding engines), motorcycle parts (excluding engines), general mechanical equipment and accessories, industrial electrical equipment and accessories, stainless steel products; sales: metal materials (excluding rare and precious metals), hardware, Jiaodian, instruments and meters; general mechanical equipment maintenance; metal surface treatment (excluding electroplating); general mechanical processing. (Except those prohibited by laws and administrative regulations in the above business scope; operations restricted by laws and regulations must obtain a license)