... Flanges 2.Materials:Stainless steel,carbon steel,alloy steel 3.Standard:ANSI,GB,JIS,KS,DIN 4.ISO 9001 Certificate 1.Lap joint flanges2.Materials:Stainless steel,carbon steel ... and alloy steel3.Standard:ANSI,GB,JIS,KS,DIN,ASME4.Styles:Plate-type Flate Welding Flanges ... ETC. Available with NACE MR 01-75 material stainless steel , carbon steel , nickel alloy ,cast iron ,brass , ...