The hydraulic lifters are integrated with two practical new type patents:
a structure of oil groove with deep injecting hole;
a workpiece for cold-extruding the outer shell of hydraulic lifter.
These hydraulic lifters have passed the check-measurement of the national authoritative organization and their quality have already overtake the international advanced standard.

Standard performed: ISO/TS16949

Products cover the brand of auto:

             VOLKSWAGEN: Santana;Jetta;Bora;Passat,Golf,
             DAEWOO
             AUDI
             BUICK
             MITSUBISHI
OEM items:9057-0967
          L058 109 309 J & L058 109 309 K
          034 109 309 AD
          MD377560

All of our products have passed dynamic test before leaving factory.
Our hydraulic lifters can reduce valve train noise after 10 second from starting engines.