... :2008,CE,TUV certified, CNC machined. export to UK. USA IDF butterfly valve(male butterfly valve, BS4825 PT 4 valves)Material ... quality: AISI304, 316L Standard: DIN/SMS/ISO/IDF/3A/RJT/DS/BS/BPESpecification: DN15mm~150mm or 1/2 ... , clamps, pipe hangers and reducers according to DIN, SMS, ISO9000. IDF butterfly valve(male butterfly valve, BS4825 PT 4 valves)