Production: excavator parts, excavator cylinders, automobile and motorcycle parts, engineering machinery equipment and accessories; machinery equipment manufacturing and processing; sales: Wujijiaodian, daily necessities, packaging materials, bedding, paper products, clothing, shoes and hats, building materials (excluding hazardous chemicals), fire-fighting equipment, fasteners, auto parts, motorcycle parts, engineering machinery equipment and accessories, motorcycles, electric vehicles, cultural office supplies, medical protective masks, import and export of goods or technology (except for the import and export of goods and technology prohibited by the state or involving administrative approval).