In use process, if the product quality problems will be free replacement.
在使用过程中如出现产品质量问题，将免费更换。
If quality have any problems could be replacement.
如有质量问题可以包换。
We promise replacement within 6 months if any quality problems are found.
如有质量问题，六个月内可包退包换。
We promise replacement within 6 months if any quality problems are found.
如有质量问题，六个月内可包退包换。
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