... tube seamless tube Typesteel pipePetroleum cracking tube pipe 20#petroleum casing tubeseamless tubeSize1/2"-24"Wall thicknessSch5-Sch160XXSStandardANSI,ASME GB, ... Packagingpainting black, cap, In bundle.Applications range petroleum, smelting, foodstuff, power, papermaking, chemical, medical equipment, aviation, boiler heat, exchanger, gas metallurgy, shipbuilding ...