The quick-recycling project is an internet platform focused on the digital recycling of second-hand mobile phones, and is described in detail below: first, the background and positioning of the project: the quick-recycling project was established in 2015 as a website under the banner of shenzhen's network, electronic technology. Project positioning: rapid recovery is positioned as a “engineer-to-door recovery” transaction model and aims to establish standards for the recycling economy in the country, represented by second-hand 3c recycling. The scale and coverage of the project covers cities: quick recovery has reached more than 200 cities across the country. Number of engineers: there are more than 400 engineers who support door-to-door recycling within 30 minutes. Users and transactions: users exceed 10 million and annual transactions are around 200,000. Project services and high-impact services: rapid recovery provides a “30-minute engineer-in-door recovery&rdqu...