The brush lubricates the chain links on both sides; the plastic rollers are only slightly dampened.

The brush lubricates the chain links on both sides; the plastic rollers are only slightly dampened.

毛刷润滑两侧的链节;胶辊只有轻微的震动

毛刷润滑两侧的链节;胶辊只有轻微的震动

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