exhaust and/or supply valves exhaust and/or supply valves: accessories humidity adjustable valves self-adjusting valves electrical accessories adjustable frequency drives car park systems electrical accessories for electric and water coil heaters electrical accessories for electric heaters fire detection...
exhaust and/or supply valves exhaust and/or supply valves: accessories humidity adjustable valves self-adjusting valves electrical accessories adjustable frequency drives car park systems electrical accessories for electric and water coil heaters electrical accessories for electric heaters fire detection...
a direct injection engine that runs on gasoline will produce carbon deposits as a by-product of the combustion process which can lead to sluggish engine performance. this is aggravated by stop-and-go city driving. over the years, this causes a build-up of black soot that hardens around the intake valves...