... SCH160 3)Standard: AMSE.DIN 4)Material:A106B,Q235,Q195 Carbon steel pipe Size1/2"-48"Wall thicknessSch10-Sch160,XXS,XS ... black varnish, transparent oil, hot galvanized, 3PE,epoxy coatingApplications rangePetroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etcMin Order QuantityAccording to customer ... the production process are made under the ISO9001:2000 strictly. Carbon steel pipe