As a first-class and professional engine control designer, we supply CNG Engine series for bus and trucks , ECU (electrical control unit) and its accessory like sensors , all which support 4 to 8 cylider in terms of your need. On the while , we also deal with whole bus and trucks. By combining world class technology , We keep good cooperation with professional engines manufacture like the AEC and AUSSEN and First Automotive work companies and so on . we are professional special in researching about engine controling.So all of our products keep high quality.