... resistant, heat preservation 3.customize for you butterfly handle gas ball valve1.Model No. : XLD-1119 2.Material:Body Brass:Hpb57 ... ,CW617n,CuZn39pb3,CuZn40pb2,CW3770,DZR.Ball: Brass as above,lead free brass,Brass ball.chrome coated,Iron ball chrome coated.Stem : Brass ... ,O-RINGS. Handle : Iron handle,Stainless steel handle,Aluminium handle,Plastic handle.Nut : Brass nut,Steel nut,Iron nut,all Zinc ...