Excuse me, if you buy a lot of American patented products in the United States and have invoices, and then sell them in China, is this an infringement? Does it count as infringement if there is no inv

Excuse me, if you buy a lot of American patented products in the United States and have invoices, and then sell them in China, is this an infringement? Does it count as infringement if there is no invoice? If the products have been patented in China and have been authorized, and the patentee has not allowed you to sell these products, then the infringement is of course the patent right of China, and the patent right of the United States is not protected in China. (Note: It has nothing to do with whether there is an invoice or not, and it has nothing to do with whether these products are patented in the United States)