... flange : certificate:ISO9001,CE Material: Carbon steel/stainless steel standard:EN,UNI,JIS,DIN,ANSI Carbon Steel A 105 ANSI Blind Flange:Specifications ... ******We can supply all kinds of flanges,eg.stainless steel flat flange,carbon steel blind flange,ss welding neck flange,and slip ... .We are sincerely welcome your valuable inquiry and questions. Carbon Steel A105 ANSI Blind Flange with good quality