As a very entrepreneurial school appliance, natural material production, and a healthy and safe vision that attracts parents, we can see that this kind of intelligent learning aid is a huge feature that makes it more sustainable, so let's get to work. Chengcheng city 999 stationery chain ltd. Was established in september 1998 as a mobile enterprise specialized in sales of office supplies and services. From 2000 onwards, the expansion of the internet, e-commerce and so forth was based on the consolidation of the original business, with the objective of becoming a large business of office supplies. At present, there are more than 15 of its stores, which have established a stable and good cooperative relationship with nearly 1,000 enterprises. The total number of office supplies sold is over 10,000, covering various areas such as office stationery, office paper, office equipment, office furniture, labour insurance supplies, business gifts, student supplies, personalized products, etc.,...