... size:1/2"-72" 4.Grade:,A234 WPB,a105 ansi flanges 1. Material: Carbon Steel, Stainless steel, Alloy steel2. ... Co., Ltd specializes in manufacturing steel buttweld pipe fittings and forged flanges, which are widely used in the field of ... weld flange, threaded flange, lap joint flange, plate flange, reducing flange, spectacle blind flange, loose flangeSize and face type1/2''-24'' Flat Face, Raised Face ...