... Socket Welding Flange, Alloy flange,Plate Flange large size of stainless steel flange ANSI Flange Size:1/2" ~ 64"(DN15 mm ~ 1600 mm ... , heating, gorging, heat treatment, machining, drilling, marking, washing, final inspection, packing, delivery. After Sales Service: Shipment tracking in time.Any problem ... prompt time. Any inquiry will be replied within 24 hours. large size of stainless steel flange