... : 304,304L,316L 3.Size: 1"-6",DN25-DN150 4.Standards: DIN,3A,SMS,ISO,IDF, RJT ... 1.ISO9001:2008,CE,TUV certified. 2.DN15-DN150,1/2"-6".AISI304,AISI304L,AISI316,AISI316L. 3. ... union (ISO9001:2000,CE,TUV certified) Specification: DN15-DN150,1/2"-6", smaller or larger to be customizedMaterials: ... from China,specializes in producing kinds of sanitary valves,pipe fittings as well as OEM services over 15 years. ...