The S and P series injectors made by our company can fit in with direct injection and whirling fluid diesel engines whose cylinder diameters are from 60-120mm.The characteristics such as low oil consumption ,little smoke and fine reliability etc. have covered middle and small diesel engines of automobile and tractor basically. The P series injector is the new one which is developed by our company .Its volume and movement inertia is small ,which fit in with the middle and small high-speed diesel engines greatly. Now there is modern equipment for production and internationally first-class imported equipment especially for key work procedures. In order to satisfy the exhausting requirement of protecting environment, many new equipment was imported from USA and Switzerland. A large quantity of injector assembly and mated parts are mated to use by Xichai, Dachai, Yunnei, Changchai, Laidong, Yangdong, Quanchai, Shifeng, Jiangdong and other factories.