Design and development, manufacturing and sales: industrial machinery, electrical products, various types of vehicle shock absorbers, welded cold-drawn precision welded pipes, high-quality welded pipes, auto parts, bicycles, optoelectronic products; sales: steel products, mechanical and electrical products, chemical products (excluding precursor dangerous chemicals), automobiles and motorcycles, automobile and motorcycle spare parts; import and export of goods; import and export of technology; processing and sales of metal products (excluding rare and precious metals).