Manufacturing and sales: intelligent braking systems, auto parts, motorcycle parts, electromechanical products and accessories, hardware tools, household appliances, daily necessities, handicrafts, textiles, clothing, shoes, hats, knitwear; sales: chemical raw materials (excluding chemical dangerous goods), building materials, office equipment; import and export of goods, technology import and export (except for items prohibited by laws and administrative regulations; items restricted by laws and administrative regulations can only be operated after obtaining a license); operations prohibited by laws and regulations are not allowed, and items that are subject to approval must not be operated before approval.