1.Build-in Ball Valves ,full flow 2.OEM 3.suitable for ... also prevents teampering With the internals of the valve when in the line. The ball valve have a double seal ... : Other Valves seriesSample Showroom The 111st Canton fairMain Market 1.Europe 2.South America 3.North America 4.Southeast Asia ... Malaysia, Greece, Sri Lanka,Syria,Tunisia,Mauritius,Algeria etc. Build-in Ball Valves full flow/1/2" 3/4 ...