... pipe fitting is ued for nuclear power, power plants, LNG, oil and gas transfer, Oil, Natural Gas & Petroleum Industries; Chemical & Fertilizer ... ,GB, SH, HG,QOST,ETC.certification:ISO9001:2008 , API , ASME,CE, HSEApplications range: Petroleum, chemical, power, gas, metallurgy, shipbuilding.construction,water and ... produce according to the customer requirement. X 70 Seamless Cross for pipeline project