... unstandard carbon steel or stainless steel flange according to customer needs . carbon steel flange Material:carbon steel,stainless steel size: ... 1/2"-24" Standard:ANSI,DIN,EN1092-1carbon steel flange 1), Sizes: from DN10 to DN30002), Material: carbon steel, ... use4), Types: WN, SO, BL, Plate, Thread, Socket and etc5), Process: free forging, plate cutting6), Packing: in wooden cases, wooden ...