The free of charge replacement of defective parts during the warranty period provided by the Seller shall be void if the Buyer is unable to supply the aforesaid documents.
如果买方无法提供上述单据，卖方在质量保证期间对有缺陷的部件提供的免费更换应失效。
Use of unauthorized replacement parts may void the warranty.
使用未经授权的替换部件不在保修范围内。
Use of unauthorized replacement parts may void the warranty.
使用未经授权的替换部件不在保修范围内。
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