20′′ 150lb Carbon Steel A105 ANSI B16.5 Blind Flange Dingxiang Beicheng Flange Co., Ltd. Base Info Standard:ANSIType:Blind FlangeMaterial:Carbon SteelManufacturing Way:Forging Description Pre:22′′ 150lb Carbon Steel A105 ANSI B16.5 Blind Flange Next:12′′ 150# Carbon Steel A105 ANSI B16.5 Welding Neck Flange