Oil saving
Wearable
Longlife
Environmental
Convenient
Good structure
Low cost
high efficiency
Optimize matching
SX Type Expander&Cr plated Rails

Oil Control Ring with Coil Expander

I-Ring with Cr Plated Periphery
GT Ring
|
Oil saving
Wearable
Longlife
Environmental
Convenient
Good structure
Low cost
high efficiency
Optimize matching
SX Type Expander&Cr plated Rails

Oil Control Ring with Coil Expander

I-Ring with Cr Plated Periphery
GT Ring