Cangzhou Dean Pipeline Co., Ltd. has its registered address at the west of Qianhutong Section of China National Highway 205 in Bianwu Township, Yanshan County. The registration authority is Yanshan County Market Supervision Administration, and the legal representative is Song Lijin. Its business scope includes the production and sales of seamless steel pipes, welded pipes, spiral steel pipes, and pipe materials; Pipe fittings, flanges, manholes, and ring pipes; Water spray spray fire cooling device, fire turret, fire spray cooling device, fire spray ring pipe, tank spray ring pipe, spherical tank spray ring pipe; Mechanical equipment accessories for power plants, steel plants, cement plants, and chemical plants; Petroleum, chemical, and power pipeline components and accessories; Ceramic wear-resistant pipes and ceramic wear-resistant fittings; Rubber lined pipelines and plastic lined pipelines; Pipe brackets, pipe supports and hangers; Anticorrosion and insulation pipelines and accessories; Import and export business of goods and above.. (For projects that require approval according to law, business activities can only be carried out with the approval of relevant departments; for general business projects, business activities can be carried out independently according to law)