1) Material:carbon,alloy or stainless steel 2).forged flange, forging flange 3)open die forging 4) ... requirements, such as forging shaft, forging rings, forging flange, gear shafts, gear rings, cast forgings, etc., ... .All the materials comply with GB, JIS, ISO, ANSI, ASTM, BS, DIN, etc. standard, which can ... will conduct throughout the entire production. carbon steel forged flange with new technology