Permitted items: Import and export of goods; Technology import and export. (Projects subject to approval in accordance with the law can only be carried out after approval by relevant departments, and specific business projects are subject to the approval documents or licenses of relevant departments) General projects: Engaged in technology development, technical consulting, technical services, technology transfer in the field of new material science and technology, sales of high-performance maintenance and composite materials, sales of graphite and carbon products, sales of civil aviation materials, sales of glass fiber and products, sales of CNC machine tools, wholesale of sporting goods and equipment, retail of sporting goods and equipment, sales of metal materials, Sales of plastic products. (Except for projects subject to approval in accordance with the law, independently carry out business activities with a business license in accordance with the law)