Not all refurbishing and reselling constitutes trademark infringement or the crime of counterfeiting registered trademarks. Not all refurbishing and reselling constitutes trademark infringement or the crime of counterfeiting registered trademarks, which is also the prerequisite for the legal existence of the second-hand market. If non-substantive changes are made to legally produced goods, such as replacing non-critical parts, or repairing a low proportion of parts, the goods will actually remain the original goods. As long as they are marked "renovated" at the time of sale, they will not be used. If consumers mistakenly believe that the product is a brand-new product provided by the trademark owner, the principle of exhaustion of trademark rights can be applied, and neither trademark infringement nor the crime of counterfeiting a registered trademark will be established.