welded butterfly valve 1.certificate:ISO9001,API 2.size:1.5"~48" 3. ... ,SMS,3A,BS 3.For dairy, beer, beverage industry4.Sanitary Butterfly Valve, stainless steel butterfly valve, clamp butterfly valve5.Material quality: SUS304, SUS316L6.Standard: DIN/SMS ... your import requirement We can supply a wide range of sanitary pipe fittings such as elbows, tees, unions, clamps, pipe hangers ...