Manufacture and sales of special-purpose vehicles; Special-purpose semi-trailers, automobile trailers, automobile compartments, automobile accessories Parts, cold-formed steel, hazardous chemical packaging, containers (vehicle steel tanks, automotive aluminum cans Body) manufacturing and sales; Trucks, pressure vessels, frequency converters, electronic products, building materials Steel, hardware, fire-fighting equipment, chemical products (excluding hazardous chemicals and the first category

Sales of non-pharmaceutical precursor chemicals; Import and export of goods (the above business items do not include The state prohibits, restricts and requires pre-licensed business projects); Metal structure Manufacturing, processing, installation; House leasing; Technical consulting services. (Items subject to approval according to law Projects, must be approved by relevant departments and carry out business activities in accordance with the permitted projects)