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Optimized heat treatment technology ensures excellent wear resistance and anti-impact strength.

Unique bush technology and specially designed clearance reduces foreign material detained between bush and pin, which greatly increase chain wear life.

The bush and pin press-out force is optimized according to application to minimize the sliding between parts. It is a main factor of high fatigue strength.

The tolerance controlling consistency makes JOSO chains easy to replace any part when necessary.

High quality chain parts is basic factor for quality chain, but not all of it. We are ready to provide solutions for customers according to working applications.