Manufacturing of coatings (excluding hazardous chemicals); sales of coatings (excluding hazardous chemicals); sales of chemical products (excluding licensed chemical products); manufacturing of coating equipment; sales of coating equipment; spray processing; sales of metal materials; sales of building decoration materials; sales of building materials; CNC machine tool manufacturing; CNC machine tool sales; machinery Equipment sales; hardware product retail; automobile sales; new energy vehicle sales; new energy vehicle electrical accessories sales; electric bicycle sales; motorcycle and spare parts retail; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; import and export of goods; technology import and export; import and export agency.