... OEM, Flange Specification Size1/8"-48"TypeWNRF, Slip-On, Blind, Socket Weld, Lap Joint, Threaded, Orifice Flange, Swivel Flange, Spectacle ... SteelASTM A182 F1/F5/F9/F11/F22/F91/Etc.Duplex stainless steelASTM A182 F51/F53/F55/F60 Nicke alloysNickel 200, Monel ... 800Cu-Ni90/10,70/30ProcessFree forging, plate cutting.PrintingCarbon steel and alloy steel with yellow print, black print, oil or zinc. ...