... , F310S, A105 etc 2.standard:ANSI/ASTM B 16.5 Stainless Steel FlangeGeneral DescriptionFlanges are the connectors used in process piping to ... , Oil, Gas, Industrial Using Detailed DescriptionFeatures: 1) Types: a) Forged steel flanges b) Plate cutting flanges 2)material: F304, F304L, F316L ... WN, SO, BL, plate, thread, socket and other special shapes 6) Kinds of forging: a) Free forging b) Die forging c ...