... ,ASTM SIZE;DN15-DN1200 Wall thickness:2-60mm NAME:three direct linksMaterial:10#,20#,Q235,20g,16MnMaterialMaterial carbon steel:20#,WPB ... -proof oilCertificatesISO 9001;Manufacture License of Special EquipmentUsuageUsed for pipe connection. The connection of the corner two of the same nominal diameter ... . A conformity rate of ex-factory inspection of products. three direct links