... ISO9001:2008,CE,TUV certified. 2.DN15-DN150,1/2"-6".AISI304,AISI304L,AISI316,AISI316L. 3.DIN,SMS,ISO,IDF,AS ... (ISO9001:2000,CE,TUV certified) Specification: DN15-DN150,1/2"-6", smaller or larger to be customizedMaterials: AISI304,AISI304L,AISI316,AISI316LSurface ... manufactory from China,specializes in producing kinds of sanitary valves,pipe fittings as well as OEM services over 15 years. Occupies area ...