The registered address of Cangzhou Jietong Pipeline Manufacturing Co., Ltd. is located in Puwacheng Industrial Zone, Yanshan County, on the south side of Pucheng East Road. The registration authority is the Market Supervision Administration of Yanshan County, and the legal representative is Liu Yan. The business scope includes processing and manufacturing steel pipes, pipeline fittings, steel sleeve steel insulation pipes and fittings, polyurethane insulation pipes, 3PE anti-corrosion steel pipes, TPEP anti-corrosion steel pipes, plastic lined steel pipes, coated steel pipes, and anti-corrosion insulation fittings; Construction of insulation and anti-corrosion engineering, production and sales of metal compensators and metal corrugated pipe expansion joints. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments)