... in China, ansi b16.5 SO, WN, bland flange(class150-1500). Size:1/2"-80" WT: ... " to 24" ASME B16.526"to 80" ASME B16.47TypeWNF, SO, SWF, BL, OF,LF,PLFaceRF, FF, MF, MFM, RJ, TG ... ,F46,F52,F56,F60,F65,F70, A182 F12,F11,F22,F5,F9,F91,F1ECT)qualificationISO9001:2008 Quality Mangement System Certificate,ISO ... (100 /2)SIZE: 1/2" TO 48 Class 400 14" SO flange