R&D: Silicone products and materials, plastic products, molds, electronic products and their accessories, daily necessities; Production and sales: Silicone products and accessories, molds, electronic products and accessories, hardware and metal products and accessories, packaging materials and accessories; Processing: Silicone products and accessories, plastic products; Production: Plastic products; Import and export of goods or technologies (excluding goods and technologies prohibited by the state or involving administrative approval). (Projects that require approval according to law can only be operated with the approval of relevant departments)