General business items are: Hardware products manufacturing; Plastic products manufacturing; Manufacturing of metal chains and other metal products; Rubber products manufacturing, hardware products retail: Hardware products research and development; Metal products sales: Metal products R & D: Electronic products sales: Rubber products sales: Plastic products sales: Domestic trade agents. (In addition to the projects that are subject to approval according to law, independent business activities are carried out according to the business license) Licensed business projects are · The first medical machinery sales; Import and export of goods; Technology import and export