B. Inner and outer cylinders are made of superior quality stainless steel with polishing treatment, clothes are not stained or damaged.

内、外桶采用优质不锈钢制造、并经抛光处理，不污染损坏衣物。

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The polishing pad comprises a center, an inner region surrounding the center, a transition region connecting grooves from the inner region to an outer region surrounding the inner region.

抛光垫包括中心、围绕中心的内部区、从内部区到围绕内部区的外部区连接沟槽的过渡区。

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