... China, ansi b16.5 SO, WN, bland flange(class150-1500). Size:1/2"- ... B16.47TypeWNF, SO, SWF, BL, OF,LF,PLFaceRF, FF, MF, MFM, RJ, TG, RTJ, SRF,PressureClass ... DIN2633,DIN2634,DIN2635,DIN2636,DIN2637 Types: Welding neck FflangesSlip on FlangesThreaded FlangesSocket Welding Flanges, Blind ... (Losse Plate Flanges); TYPE5(Blank Flanges); TYPE11(Weld-neck Flanges); TYPE12(Hubbed Slip-on Flanges For Welding ...