The business scope includes general items: Mold sales; Mold manufacturing; R&D of new material technology; Technical service, technical development, technical consultation, technical exchange, technology transfer and technology promotion; Sales of engineering plastics and synthetic resins; Research and development of household appliances; Sales of household appliances; Sales of spare parts of household appliances; Manufacturing of auto parts and accessories; Sales of synthetic materials; Hardware products manufacturing; Wholesale of hardware products; Retail of hardware products; Research and development of hardware products; Domestic trade agency; Engineering management services; Sales agent; Information consulting services (excluding licensing information consulting services); Plastic surface treatment; Sales of plastic products; Manufacturing of plastic packing boxes and containers.