Low price for Flange Needle 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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We often stay with the principle "Quality Very first, Prestige Supreme". We have been fully committed to supplying our consumers with competitively priced high-quality goods, prompt delivery and skilled provider for Low price for Flange Needle Valve - rider ring – DONGYI, The product will supply to all over the world, such as: Madrid , Tunisia , Florence , It using the world's leading system for reliable operation, a low failure rate, it suitable for Argentina customers choice. Our company is situated within the national civilized cities, the traffic is very convenient, unique geographical and economic conditions. We pursue a people-oriented, meticulous manufacturing, brainstorm, build brilliant" business philosophy. Strict quality management, perfect service, reasonable price in Argentina is our stand on the premise of competition. If necessary, welcome to contact us by our website or phone consultation, we will be happy to serve you.

Customer service staff and sales man are very patience and they all good at English, product's arrival is also very timely, a good supplier.
