Sales of automobiles, auto parts, electronic products, mechanical equipment, lubricants, chemical products (excluding hazardous chemicals); manufacturing of truck bodies, special-purpose vehicles, auto parts, instruments and meters, electrical equipment, target equipment, X-ray security inspection equipment, explosion-proof equipment, hazardous liquid inspection equipment, radio detection and countermeasure equipment, radar detection equipment, metal detection equipment, video inspection equipment, vehicle interception equipment, night vision devices, under-vehicle inspection systems, environmental protection equipment and supplies, social public safety equipment and supplies; automobile leasing; automobile decoration; computer graphic design; design, production, agency, and publication of advertisements; economic and trade consulting; import and export of goods; import and export of technology; agency import and export.