Production and sales of castings, forgings, general machinery and equipment, instruments and meters, Wujinjiaodian, rubber products, automobiles (except cars) and accessories, motorcycles and accessories, bearings; metal materials (except precious and rare metals), chemical products (excluding dangerous goods), knitted textiles, ceramic products, computers and accessories, home appliances, electronics Sales of products; mechanical equipment design and maintenance (excluding special equipment); import and export business; business management (excluding investment and asset management) consulting; new material technology promotion services; data processing (except for bank card centers in data processing and cloud computing data centers with a PUE value above 1.5) and storage services.