The so-called OEM (original equipment manufacturer) that people are so shy about is not fake wine, but a common form of OEM-manufacturers produce products on behalf of trademark holders according to needs and authorization. In the wine trade, this is manifested in the winery making wine according to the requirements of the buyer, and then labeling the wine designed by the buyer. Nowadays, many large wineries are engaged in professional OEM production in various famous producing areas around the world. As long as the orders of wine merchants are attractive enough, some small wineries are willing to customize a wine for them. Compared with agricultural products such as wine, OEM is more widely used in the industrial field.