Beijing Le Stack Technology Co., Ltd. referred to as "Le Stack 517" 1, is the first domestic smart food and beverage online ordering platform, by several IBM's senior smart city experts together with the catering industry experts *** with the founding of the company is committed to business white-collar workers, community families, hospitals, schools, etc. to provide catering and food customization services. 2 "Le Stack" intelligent distribution cabinet jointly developed by Gree and Le Stack, with 0-60 ℃ intelligent temperature control, safe disinfection and sterilization, overdue alarm, multi-screen advertising display and other functions, and support for cash, bus cards, WeChat payment and other means of payment, can be in the community, office buildings, subway stations, hospitals, schools and other corners of the city. The deployment of points.