Engages in the production and sale of spiral steel pipes, straight seam steel pipes, seamless steel pipes, hot-dipped galvanized steel pipes, N-HAP cable protection pipes, hot-dipped galvanized cable conduit protection pipes, plastic-coated steel pipes, plastic-lined steel pipes, PTFE-lined steel pipes, steel-plastic composite pipes, epoxy powder coated steel pipes, plastic-coated seamless steel pipes for mining, plastic-coated steel pipes for water supply and drainage, plastic-coated steel pipes for fire protection, plastic-coated steel pipes for outdoor gas, 3PE coated steel pipes, TPEP coated steel pipes, pre-insulated buried pipes, polyurethane insulated pipes, galvanized steel plate suspended insulated pipes, steel clad steel steam insulated pipes, wear-resistant pipes, non-toxic drinking water steel pipes, epoxy coal tar three oil two fabric coated steel pipes, cement mortar lined steel pipes, stainless steel lined steel pipes, pipeline pipes, alloy pipes, stainless steel pipes, galvanized steel pipes, elbows, tees, flanges, reducers, valves, pipeline fittings, wire rods, plates, and steel products. (Operational requirements as permitted by law)