R&D, manufacturing and sales of hardware products; Manufacture of plastic products; Sales of plastic products; R&D, manufacturing and sales of rubber products; R&D, manufacturing and sales of rubber products; R&D, manufacturing and sales of electronic products; R&D, manufacture and sales of packaging products; R&D, manufacturing and sales of ATM parts and accessories; Sales of various printer and copier consumables; R&D, manufacturing and sales of auto parts and accessories; Goods import and export services; Technology import and export services; Professional design service; R&D, production and sales of Class I and Class II medical devices. (Except for the projects that must be approved according to law, independently carry out business activities according to law with the business license; Projects that must be approved according to law can only carry out business activities after being approved by relevant departments. The specific business projects shall be subject to the approval documents or licenses of relevant departments)