To ensure the appearance structure characteristics permanent stability, good wear resistance, can meet the need of long-term high frequency of use.
能保证外观结构特征恒久稳定不变，耐磨性好，能满足长期高使用频率之需要。
To ensure the appearance structure characteristics permanent stability, good wear resistance, can meet the need of long-term high frequency of use.
能保证外观结构特征恒久稳定不变，耐磨性好，能满足长期高使用频率之需要。
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