1.Build-in Ball Valves ,full flow 2.OEM 3.suitable ... prevents teampering With the internals of the valve when in the line. The ball valve have a double seal ... 4.Southeast Asia 5.Middle East Countries like: America, Russian, Germany, Korea, Bangladesh, Thailand,Myanmar,Kazakhstan,Mozambique,Malaysia, Greece, ... Sri Lanka,Syria,Tunisia,Mauritius,Algeria etc. Build-in Ball Valves full flow/1/2" 3/4" 1"