Sales of building materials, hardware, fasteners, mechanical equipment and accessories, printing equipment and accessories, electromechanical equipment and accessories, electronic and electrical products, experimental instruments, office furniture and accessories, kitchen supplies, exhibition equipment, plastic products, packaging materials, daily necessities, knitwear and textiles, bedding, clothing, bags and accessories, mechanical equipment leasing, Business information consulting, technical services and technical consulting in the fields of machinery, mould and information technology, and engaged in the import and export business of goods and technology.