Carbon steel and stainless steel forged flanges

Materials:1) Carbon steel: ASTM A105, RST37-2, C22-82) Stainless steel: F304. F321, F316, F316LStandards: 1) ANSIB16.5, 2) DIN 2573/2576/2527/2631/2632/2519/25283) UNI 2278 - 67 and 6100 - 674) BS45045) JIS B2220Size: 1/2"-60" or DN15mm - DN3000mm