... :stainless/carbon/alloy 2)standard:ansi din ba etc 3)size:1/2"-100" 4)ISO9001:2000,API pipe fitting plate flangeFORGED ... 304L, 316/316L, F321/321H, EN10272, 1.4301, 1.4306, 1.4307, 1.4404 PRESSURE: 150LBS-2500LBS SIZE 1/2"-100" and BIGER WIND POWER FLANGE ... FROM 3000MM-8000MM ANSI b16.5 class 600 ...