Online Exporter Double Chamber Air Valve - rider ring – DONGYI Detail:
Selection from a comprehensive range of tribological materials
No pressure applied to the rider ring by relief grooves
Conversion of cylinder from lubricated to non-lubricated operation
In reciprocating compressors, rider rings guide the piston in the cylinder bore.
We manufacture them from materials that are specifically developed for the respective application.
Product detail pictures:

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"Based on domestic market and expand abroad business" is our progress strategy for Online Exporter Double Chamber Air Valve - rider ring – DONGYI, The product will supply to all over the world, such as: Albania , Czech Republic , America , We are sticking to excellent quality, competitive price and punctual delivery and better service, and sincerely hope to establish long-term good relationships and cooperation with our new and old business partners from all over the world. Sincerely welcome you to join us.

We are a small company that has just started, but we get the company leader's attention and gave us a lot of help. Hope we can make progress together!
