... face type. Widely used. Stainless Steel Plate Flat Weld Flange Model: WB PH-45Feature:1. It is used to connect lines to ... paramete: Material of flange20#,A105,Q235A,12Cr1MoV,16MnR,15CrMo,18-8,321,304,304L,316,316L etc.Pressure grade0.25MPa~250MPa ... free to contact us! Stainless Steel Plate Flat Weld Flange Model:WB PH-45