Professional Custom Piston Rings Manufacturer and Spplier sales@heartenauto.com
The top compression ring use the nitriding technology,the bush ring retains the characteristics of the Chromium:
● The hardness of nitride is HV1100
● The nitride processing will make the product's plane and the excircle have a good hardness
● Cost-Effective
● Under normal conditions,It can use 1,5000KM