... WP316. A403-WP316L.Applications rangePetroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etcMin Order QuantityAccording to customer' s ... ISO9001 strictly.Company info. Cangzhou Guyuan Steel Pipe Co., LTD is located in cangzhou hebei China, was founded ... company for domestic coal-fired power, chemical, shipbuilding, metallurgy, pressure vessel, petrochina and sinopec key projects to ...