1.1/2"-72" 2.Type:Weld Neck,Slip On,blind,Flat,Socket weld flange 3.ANSI,API6A,MSP,DIN,BS 4.OEM/ISO A182 F51.316.304.316L Flange Size1/2"-72"TypeWeld Neck, Slip-On, Blind, Socket Weld, Lap Joint, Threaded, Orifice Flange, Swivel Flange, Spectacle Blind,Etc.StandardANSI, ASME ,MSS, API, DIN, JIS, BS. AWWA and GBClassANSI 150LBS-2500LBS,DIN PN6-PN160BS PN0.25-PN25 PN2.0-PN42.0JIS 5K- ...