... CW614n,CW617n,CuZn39pb3,CuZn40pb2,CW3770,DZR.Ball: Brass as above,lead free brass,Brass ball.chrome coated,Iron ball chrome coated.Stem ... Iron handle,Stainless steel handle,Aluminium handle,Plastic handle.Nut : Brass nut,Steel nut,Iron nut,all Zinc plated. Connection : Theaded ISO228,BSP,NPT, ... to ensure the Delivery and Quality!We smelt the brass bars,make the hot forging,machining and CNC processing ...