China's four major cloud warehouse is which four cities

China's four major cloud warehouse is Shanghai, Hangzhou, Tianjin, Zhengzhou four cities. Cloud warehouse is a kind of logistics warehousing, but different from the traditional warehouse, e-commerce warehouse, followed by the cloud warehouse in the cloud concept comes from cloud computing, so the cloud warehouse is the use of cloud computing as well as modern management methods, relying on storage facilities for the circulation of goods in the new logistics warehousing system products.