... ,UNI,BS,GOST Type:WN flanges Size:DN15-6000 Specificatin: Product type: SO, WN flange, Bl flange, S W flange, Th ... : ANSI,ISO,GOST,JIS,DIN,EN,UNI,BS Materials: Carbon steel, stainless steel Pressure:5k,10k,16k,20k,class 150l,300l,600l, pn10 ...