... , Certificate: ISO,API, PED material: carbon steel, SS Pipe Fitting1)Material:carbon steel,alloy steel,stainless steel 2)Size ... 72 From 1/2 to 30 (Seamless Pipe Fittings),Form16 to 72(Seam Pipe Fittings)ScheduleSCH STD, XS, XXS, SCH ... :ISO9001:2000Applications range: Petroleum, chemical, power, gas, metallurgy, shipbuilding.construction,water and nuclear power etc. Packaging: seaworthy package,Plywood ...