Brass ball valve with union joint Brass body with nickel plated Brass ball and stem, steel nut and aluminium handle The size is 1/2"X25mm, 3/4"x32mm, 1"x40mm We are a very professional enterprise that mainly manufactures brass ball valves, brass angle valves, brass stop valves, brass check valves, brass bibicocks, gas valves, radiator valves, brass fittings, plumbings and so on.