Manufacturing, sales, and technical consultation of motors, generators and accessories, general machinery and accessories, auto parts, motorcycle parts, electrical machinery and equipment, and locks; technology development, sales, and technical consultation of computers, software and auxiliary equipment, monitoring equipment, and electronic products; sales of hardware products, metal materials, building materials, decorative materials, knitted textiles, handicrafts, and daily necessities; retail of department stores; house leasing (excluding financial lease); leasing of special equipment (excluding financial lease).