... ,CE,TUV certified, CNC machined. export to UK. USA SMS butterfly valve(clamp butterfly valve, sanitary valves)Material quality: AISI304, 316L Standard: DIN/SMS ... of sanitary pipe fittings such as elbows, tees, unions, clamps, pipe hangers and reducers according to DIN, SMS, ISO9000. SMS butterfly valve(clamp butterfly valve, sanitary ...