1.Build-in Ball Valves ,full flow 2.OEM 3.suitable for water services,heating,etc. 4.Opening/closing tests:10000 time Features: Ball valve are bottom ... -time use. Application: Material: NO. Component Material 1 Body C37700 2 Bonnet C37700 3 Ball C37700 4 Seat Ring Teflon 5 Stem C37700 6 ... , Greece, Sri Lanka,Syria,Tunisia,Mauritius,Algeria etc. Build-in Ball Valves full flow/1/2" 3/4" 1"