... ) Pressure: SCH5S-160. 4) ISO certificated. Features:Product Stainless Steel Pipes,Duplex Steel PipesSize Seamless Pipes 1/2"-20" Welded Pipes 1 ... Rating SCH5S-SCH160.Standard ASTM/ASME A511,A269,A312,A213.Material Stainless SteelGrade ANSI TP304,304L,310/S,316,316L,316 ... .Mill CertificateEN 10204.3.1 etc.Certificate ISO9001 Certificate. Stainless Steel Pipes,Duplex Steel Pipes