1.ANSI,DIN,JIS,KS,EN etc 2.CU-NI 90/10 SO flange DIN flange 3 API flange 4. Best Quality competitive price ... .. CU-NI 90/10 SO flange DIN flange Type Weld Neck, Slip-On, Blind, Socket Weld, Lap ... Joint, Threaded, Orifice Flange, Swivel Flange, Spectacle Blind, etc. Size 1/2"-48" Class 150#, 300#, 400#, 600#, 900#, 1500#, 2500 ...