1.Build-in Ball Valves ,full flow 2.OEM 3.suitable for water ... also prevents teampering With the internals of the valve when in the line. The ball valve have a double seal with ... Seat Ring Teflon 5 Stem C37700 6 Packing Rings Teflon 7 Washer C37700 8 Handle Steel & Aluminium 9 Nut Steel ... Malaysia, Greece, Sri Lanka,Syria,Tunisia,Mauritius,Algeria etc. Build-in Ball Valves full flow/1/2" 3/4" 1"