General projects: Research and development of new materials technology; Electronic product sales; Electronic component manufacturing; Wholesale of electronic components; Electronic special equipment manufacturing; Sales of electronic special equipment; Rubber products manufacturing; Sales of rubber products; Sales of communication equipment; Metal cutting and welding equipment manufacturing; Sales of metal cutting and welding equipment; Manufacture of special equipment for pulping and papermaking; Sales of special equipment for pulping and papermaking; Sales of packaging materials and products; Hardware product manufacturing; Wholesale of hardware products; Retail of hardware products; Mechanical equipment sales; Sales of new membrane materials; Manufacture of new membrane materials; Sales of synthetic materials; Sales of arts and crafts and etiquette supplies (except ivory and its products); Daily masks (non-medical) sales; Sales of labor protection articles; Daily necessities sales; Internet equipment sales; Internet sales (except the sale of goods that need permission); Import and export of goods. (except for the projects subject to approval according to law, independently carry out business activities according to law with the business license)