Item name:Blind Flange(stainless blind flange,stainless steel flange) Item name:Blind Flange(stainless blind flange,stainless steel flange)MaterialCarbon Steel:ASTM A105, ASTM ... )Alloy:ASTM A182 F1, F5a, F9, F11, F12, F22, F91 Blind Flange(stainless blind flange,stainless steel flange)