Cold chain distribution. In the process of transportation, a lot of cold chain distribution is needed, and the logistics cost is high. Low-temperature dairy products must be kept between 2℃ and 6℃ in the whole process, so as to ensure the quality of products. Mengniu Dairy (Group) Co., Ltd. (hereinafter referred to as Mengniu Dairy or Mengniu), established in August 1999, is headquartered in Lesheng Economic Park, Helinger County, Hohhot City, Inner Mongolia, and is a national key enterprise in agricultural industrialization and a leading enterprise in dairy industry. Mengniu is a leading dairy supplier in China, focusing on research and production of dairy products suitable for people's health in China, and is one of the top dairy companies in the world 10.