... ,Hpb59-3,CW614n,CW617n, CuZn39pb3,CuZn40pb2,C3770,DZR. Stem Brass Stem, Brass as above. Sealing PTFE/TEFLON,VITON,O-RINGS. Handle ... steel handle. Nut Brass nut,Steel nut,Iron nut,all Zinc plated.Connection Theaded ISO228,BSP,NPT,UNION.3.Technics: Forged ... .4.Guaranty: 5 years guatanty5,Surface: brass color, yellow color6,certrification: ...