... ,16k,20k,30k,150# to 2500#,PN6-PN40 professional manufacuture of flangesize:DN15-DN2000material:cs&sspressure:5k,10k,16k,20k,30k ... ,150# to 2500#,PN6-PN40professional manufacuture of flange1.Size:DN15 to DN2000,1/2" to 78"2 ... ,JIS,BS,UNI,EN1092-1,SABS1123,AS2129,GOST-128204.Types:plate,slip-on,threaded,socket weld,blind flange5.Process:free forging, plate ...