Source: Straight Newscosmos Causeway Bay, Mr. Huang, a citizen of Hangzhou, recently purchased a can of imported milk powder. After receiving the goods, he found a small two-dimensional code on the milk powder can, and swiped the mobile phone to see all the logistics information of this can of milk powder from Australia to Hangzhou. It is understood that during the "Double Eleven" this year, through blockchain technology, Tmall platform has nearly 400 million Haitao products from more than 100 countries around the world , and has such an "identity card."cosmos Causeway Bay, 5
