stainless steel, carbon steel flanges reliable quality &high performance ; reasonable &competitive pricing; 1) Stainless steel flange and carbon steel flange2) Standard: ASME, ANSI, API, JIS, JPI, DIN, UNI, BS ... -2500LB, 5-30K,PN0.25- 32Mpa8) Packing: Plywood case/pallet or as per customers' requests carbon steel/stainless steel flange