1.Using the valve plate of "straight side multi barrel concentric DC valve" has no fracture for life, more convenient maintenance and lower noise.

2.The connecting rod adopts needle roller bearing design, which is more wear-resistant, and the crankshaft has no wear for life.

3.Cast iron piston precision processing, more wear-resistant, not easy to deformation.

4.The imported piston ring is adopted, which has less oil consumption and wear resistance.

5.Adopting the new technology of compressor dynamic balance, the vibration is small and the noise is low.