1) Alloy Steel Flange 2) Size: 1/2"-30" 3) Standard: ASME, ANSI, DIN, etc. 4) Stainless Steel, ... , etc 1) Standard:ANSI, ASME, DIN, JIS, BS, etc.2) Size:1/2"-30"3) Material available:stainless steel, carbon steel, alloy ... , blind flange, threaded flange, etc.5) Other:SPECIAL DESIGN AVAILABLE High Quality Alloy Steel Flange