1)Product:Stainless Steel Pipes. 2) Size: 1/2"-20". 3) Pressure: SCH5S-160. 4) ISO certificated. Features:Product Stainless Steel Pipes,Duplex Steel PipesSize Seamless ... SCH5S-SCH160.Standard ASTM/ASME A511,A269,A312,A213.Material Stainless SteelGrade ANSI TP304,304L,310/S,316,316L,316/ ... etc.Mill CertificateEN 10204.3.1 etc.Certificate ISO9001 Certificate. Stainless Steel Pipes,Duplex Steel Pipes