Friction from the small, the most suitable for high speed rotation, low noise, low vibration.

摩擦力距小，最适合于高速旋转，低噪音、低振动的场合。

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If the normal, high-speed friction film and brake drum clearance.

若正常，可高速磨擦片与制动鼓间隙。

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If the normal, high-speed friction film and brake drum clearance.

若正常，可高速磨擦片与制动鼓间隙。

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