flange Type:WN,SO.SK,BLIND FLANGE Pressure :150#,300#,600#,900#,1500# Type :SO,WN,SK,BLIND FLANGE Size : DN15-2000 , 1/2''-80''Pressure :150#,300# ,600# ,900# ,1500# Material:Carbon Steel , and Stainless SteelCarbon Steel: ASTM A234WPB, WPC;ASTM A420 WPL9,WPL3,WPL6A;ST 37.2Q235,A105,A106,20#Stainless Steel: ASTM A403 WP304/304L, WP316/316L,WP321,WP347Standard: JIS ,DIN ,ANSI/ASTM, GB,BS ,SMS. ...