The registration address of hebei shang yu pipeline equipment ltd. Is located at 40 metres to the north of the salt hill kiln bridge and is represented by the salt hill county market supervisory authority, which operates on general items: sale of metal materials; sale of metal structures; sale of machine-bed functional parts and accessories; wholesale sale of hardware products; sale of mechanical parts, parts and components; wholesale distribution of sports supplies and equipment; sale of temperature-conserving materials; sale of anti-corruption materials; sale of steel bars for construction; sale of metal accessories for construction; sale of sealed items; sale of high-performance sealed materials; sale of axes, gears and transfer parts; sale of axle; sale of springs; sale of plastics; sale of paints (without dangerous chemicals). (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)