Blind Flange
1.Materials: Carbon Steel:ASTM A105,ASTM A350 LF1,LF2,LF3,A36,ASTM A234 WPB,etc Stainless Steel:ASTM A182 F304/304L, 316/316L,316Ti,321,317L,310S,etc Alloy Steel:A182 F1,F5,F9,F11,F12,22,F22,F91,etc Duplex Stainless Steel: S31803(SAF2205),S32750(...