Where is the best place to buy sea cucumbers in Shanghai? Should the national certified organic sea cucumber be more secure?

As far as I know, the brand of sea cucumber you sent is good. There are many stores in Shanghai plus a general warehouse. I heard from friends that the general warehouse should be in Jing 'an Circus City, and Pudong, Huangpu and Changning all have their own stores. If you don't know where to go, you can search these places. His sea cucumber has passed the organic food certification, which meets your requirements for the quality of sea cucumber.