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Independent research and development.

Seamless sleeve, formed using cold extrusion technology. The cylinder has no gaps, the true roundness is greatly improved, and it is not easy to deform. The seamless sleeve and pin are in surface contact rather than point contact, which increases the wear resistance of the product. 

The chain plate is isothermally treated to enhance fatigue performance.

The introduction of Japanese precision punches and Japanese precision molds, the chain plate has high precision, and the German pin machine and pipe rolling machine are introduced, the parts size is precise and consistent.

Using raw materials imported from Germany, with stable performance, long life, smooth and flat surface, high dimensional accuracy and good mechanical properties.

Cr-V co-infiltration on the surface of the pin shaft to enhance wear resistance.