3PC Sanitary Flange Butterfly Valve (DIN) 1 Size:1"-4"& DN25-DN150 2 Material: ... Standard: 3A,DIN,SMS,ISO Stainless Steel Sanitary 3PC Flange Butterfly Valve( DIN)1) Working medium: water,gas ,oil,etc2) Material ... ,cosmetic,biology,chemical6) Surface treatment:Ra≤0.8μm 7) Other products:flange butterfly valve,clamped butterfly valveDIN: Stainless Steel Sanitary 3PC Flange ...