Hello, Shaoxia, Quan Xiaoer inquired that the trademark of Dadiwan was applied for registration by Hou Tiancai, and now the renewal has been completed, which means it can be used for another ten years from this year. In addition, the categories of 29 kinds of food and 3 kinds of convenience food that are suitable for slurry water have been registered here. I hope I can help you. If you have any questions, you can ask. Inquire about this recommended master. It's really useful.