It's been more than 20 years since Yi Jeong's establishment in 1989. We started out as a supplier of Universal joint to After Market and we expanded our market through the world over years. We had further expanded our product range to rear wheel PROPELLER SHAFT,FORKLIFT PUMP DRIVESHAFT, STEERING SHAFT,HEAVY-DUTY DRIVESHAFT. In views of the fact that chains in ATV couldn't sustain the high torque and RPM of the engine and domestic ATV (all Terrain Vehicle)entrepreneur have started the development in heavy duty ATV which is more than 250 c.c. since 2004,Yi Jeong began to develop high rotational speed drive shaft used in 4WD ATV with many world-famous companies. This design is a breakthrough from the limitation of chains and axis type for output power. ATV has upgrade to heavy duty vehicle which has no limitation in terrain and is able to replace traditional farming machinery working in bad terrain condiction. Under the enterprise objective of striving for perfection and unceasingly progress, Yi-Jeong imported drive shaft balancing machine from Schenk which is the world's leading equilibrator manufacturer company in Germany. This is the only Schenck drive shaft adjustment equipment in Taiwan. With the upmost strict quality control and unceasingly progress, our product have high reputation in the market.