Ding Dong buys food in Xining. Upon inquiry, related information: Xining Ding Dong Life Service Co., Ltd., located at Room 36-280, 9th Floor, Science and Technology Incubator Building, No.36 Jinqiao Road, Dongchuan Industrial Park, Xining City, Qinghai Province. Engaged in general projects: domestic service. Internet sales (except for the sale of goods that need permission). Residents' daily life service. Professional cleaning, cleaning and disinfection services. Building cleaning service. Environmental emergency management service. Daily grocery sales. Personal internet live broadcast service. Loading and unloading. Sales of daily necessities (except for projects subject to approval according to law, independent business activities shall be carried out according to law with business licenses).