What should I do if the exhaust gas treatment fluid sold by the gas station is found to be infringing on trademark and there is no invoice?

Contact the manufacturer or supplier to seek legal help and other solutions.

1. Contact the manufacturer or supplier: You can contact the manufacturer or supplier and ask for proof of the source and quality of the product.

2. Seek legal help: The exhaust gas treatment fluid sold by the gas station has trademark infringement. If you have relevant evidence, you can seek legal help.

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