... resistant, heat preservation 3.customize for you butterfly handle gas ball valve1.Model No. : XLD-1119 2.Material:Body Brass: ... ,CW617n,CuZn39pb3,CuZn40pb2,CW3770,DZR.Ball: Brass as above,lead free brass,Brass ball.chrome coated,Iron ball chrome coated.Stem : Brass ... ,Iron nut,all Zinc plated. Connection : Theaded ISO228,BSP,NPT,UNION.3.Technics: Forged, Chrome plated, Nickel plated, Galvanized. 4. ...