100% Original Factory Oil Scraper Ring - piston ring – DONGYI

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Tribologically advantageous materials Gas-tight construction for low-molecular-weight gases piston rings seal the gas in the compression chamber of reciprocating compressors. They are customized, in terms of design and material, to the respective application conditions in refineries, the natural gas industry, as well as the petrochemical and chemical industries. The precisely manufactured rings also allow reliable operation with a long service life in industrial air production and many areas...


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Our merchandise are commonly identified and dependable by end users and will meet continually altering financial and social desires for Piston Rings For Chevrolet Impala , Radiator Air Vent Valve , Plastic Check Valve , Our final target is "To consider the most effective, To be the Best". Please experience cost-free to call with us if you have any prerequisites.
100% Original Factory Oil Scraper Ring - piston ring – DONGYI Detail:

Tribologically advantageous materials
Gas-tight construction for low-molecular-weight gases

piston rings seal the gas in the compression chamber of reciprocating compressors. They are customized, in terms of design and material, to the respective application conditions in refineries, the natural gas industry, as well as the petrochemical and chemical industries. The precisely manufactured rings also allow reliable operation with a long service life in industrial air production and many areas of process engineering.

Piston rings, rider rings and bands are manufactured in various designs:

One-piece or segmental straight
Angle cut
Step cut
Twin Ring™
Double Twin Ring™
Two Segment
Pressure balanced
designs rings and has developed specific combinations for particularly problematic and demanding applications. This has also included numerous successful conversions from lubricated to non-lubricated operation.Pressure balanced rings are available, when deemed appropriate for high pressure applications and piston/rider ring combinations are also available for more specific applications.

Large diameter piston rings up to 47” (1200mm) are custom manufactured for special requirements. A range of metallic piston and rider rings are also manufactured, using selected grades of bronze or cast iron, where operational requirements dictate.


Product detail pictures:

100% Original Factory Oil Scraper Ring -
 piston ring – DONGYI detail pictures

100% Original Factory Oil Scraper Ring -
 piston ring – DONGYI detail pictures


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We have now our possess revenue group, design staff, technical crew, QC team and package group. We now have strict excellent regulate procedures for each process. Also, all of our workers are experienced in printing subject for 100% Original Factory Oil Scraper Ring - piston ring – DONGYI, The product will supply to all over the world, such as: Greece , Costa Rica , Paris , We are eager to cooperate with foreign companies which care much on the real quality, stable supply, strong capability and good service. We can offer the most competitive price with high quality,because we are much MORE PROFESSIONAL. You are welcomed to visit our company at any time.
  • The manufacturer gave us a big discount under the premise of ensuring the quality of products, thank you very much, we will select this company again.
    5 Stars By Judy from Malaysia - 2017.08.16 13:39
    Reasonable price, good attitude of consultation, finally we achieve a win-win situation,a happy cooperation!
    5 Stars By Hulda from United Arab emirates - 2017.10.23 10:29
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