1) Alloy Steel Flange 2) Size: 1/2"-30" 3) Standard: ASME, ANSI, DIN, etc. 4) Stainless Steel, Carbon Steel, Alloy Steel, etc 1) Standard:ANSI ... , ASME, DIN, JIS, BS, etc.2) Size:1/2"-30"3) Material available ... :stainless steel, carbon steel, alloy steel, etc.4) Flange type:welding ...