... . Specialized in development and production of copper valves, gas valves, cast steel valves, stainless steel valves, sanitary wares, water meters and ... ,BSP,NPT etc.2.Valve components: Body Brass: CW614N, CuZn39Pb3, CW617N, CuZn40Pb2, DZR FlashboardBrassBonnet & Stem, NutBrassGasket & PackingPTFEHandleCast Iron HT200FF ThreadParallel Thread to ...