Production and sales of polypropylene interfaces for infusion bags, polycarbonate medicated combination stoppers for infusion bags, polypropylene medicated combination plugs for infusion bags, polypropylene combination covers for plastic infusion containers (all operated within the scope and period approved by the special registration certificate), rubber products, plastic products, glass products; metal processing (except where there are special regulations by the state); sales of plastic raw materials and chemical products (not subject to special regulations) (including hazardous chemicals), building materials, decorative materials, metal materials (excluding rare and precious metals), office supplies, daily necessities, Wujijiaodian, auto parts, motorcycle parts, electronic products (excluding electronic publications), general machinery and equipment; import and export of goods (except for items prohibited by laws and administrative regulations, items restricted by laws and administrative regulations must be operated after obtaining a license). [Business scope that is prohibited by laws and administrative regulations shall not be operated; projects that are required to be approved by laws and administrative regulations must be approved in accordance with the law before they can be operated]**