Business scope includes: Permitted items: road transport of goods (excluding dangerous goods), import and export of goods, import and export agents, technology import and export (according to law to be approved by the relevant departments before the approval of business activities, specific business projects subject to the approval results) General items: environmental protection special equipment sales, glass fiber and products sales, general equipment manufacturing (excluding special equipment manufacturing ), General parts manufacturing, other general instruments manufacturing, hardware products retail, hardware products wholesale, building materials sales, wire and cable business, daily mask (non-medical) sales, medical mask wholesale, medical mask retail, electronic components and electromechanical components equipment sales, electronic special equipment sales, electrical machinery equipment sales, electrical equipment sales, metal materials sales Sales of special chemical products (excluding hazardous chemicals), wholesale of electronic components, retail of electronic components, sales of electronic products, sales of mechanical equipment, sales of metal products, sales of instruments and meters, sales of office equipment, sales of CNC machine tools, sales of air pollution monitoring and testing instruments, sales of environmental emergency testing instruments, sales of environmental emergency technical equipment, mold sales Sales, machine tool functional parts and accessories sales, electrical instruments and meters sales, capacitors and supporting equipment sales, household appliances sales, ecological environmental materials sales, synthetic materials sales, industrial automatic control system device sales, industrial textile products sales, labor protection products sales, rubber products sales, paper products sales