Copper-free ceramic W series: Formulated with copper-free technology, it adopts porous and granular high-end imported materials, and the friction coefficient is stable. It is more in line with the special requirements of the new national standard for environmental protection, greatly reducing the damage of the dual parts and effectively controlling the braking noise. The friction coefficient is above 0.45, the high temperature is 650 °C, and it is pressed by special process. It is mainly suitable for Japanese, Korean and European and American luxury cars.
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