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Manufactured with the latest technology at the highest level of qualities. Maintained with steel and cast iron rings as raw materials accepted and consequently earned outstanding reputation among genuine parts, replacements and after markets. Developed by surface treatment such as physical vapor deposition technology, solid lubricating film and gas nit riding. Inspected by analyzing ring motion behaviors, thermal measurement, oil film thickness and friction force measurement under running conditions. Reached with several projects in some universities and other organizations to construct new technologies for all customers. Certified by iso9001-900.
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