... Brass stop valve 1)good price with high quality 2)deliver in time 3)10-year-experience in valve ... industrial Stop valve1. size:1/2"-2"2.Material: Body Brass,Hpb57-3 ... ,CW617n, CuZn39pb3,CuZn40pb2,C3770,DZR. Stem Brass Stem, Brass as above. Sealing PTFE/TEFLON,VITON,O ... Guaranty: 5 years guatanty5,Surface: brass color, yellow color6,certrification: CE ISO9000:2000 Brass stop valve