... DN20 500 pcs for DN25 and above 200 pcs for DN50 and aboveGeneral features and options for customized brass ball valves: 1. Brass ... body material: CuZn39Pb2, CW617n, CW614n, HPb59-1, HPb57-3, MS58, DZR.3. Body finish: brass ... : standard flow, full flow, reduced flow5. Ball material: brass, stainless steel, PVC6. Sealing: PTFE, EPDM ... SeatPTFE PN40 BSP Threaded Brass Ball Valve