... 3.DIN,SMS,ISO,IDF,AS,BS,BPE Standard.Sanitary union (ISO9001:2000,CE,TUV certified) Specification: DN15- ... ball valve,check valve,diaphragm valve,safety valve,union parts,ferrule,end cap,nut,clamp,elbow,tee ... from China,specializes in producing kinds of sanitary valves,pipe fittings as well as OEM services over 15 years ... welding machine and so on. Stainless steel sanitary union sanitary pipe fittings