If the roll core is made of special materials, smaller friction coefficient of tile can be used.

客户的卷芯如果是特殊材料制造的，可采用摩擦系数较小的瓦片材料。

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If the roll core is made of special materials, smaller friction coefficient of tile can be used.

客户的卷芯如果是特殊材料制造的，可采用摩擦系数较小的瓦片材料。

youdao