Brother tiger (english name huge) is the classification and service brand of living waste under the banner of zhejiang tiger environment ltd. Brother tiger has built a modern environmental governance system around “digital cities”, creating “cities without waste”, providing services for the quantification, resourceization and neutralization of household waste, establishing a “one-stop collection at the front end, recycling one chain, monitoring one network with wisdom” and managing the whole chain. Products and services i. Digital urban waste management service front end collects one-stop front-end recyclables with high concentration, avoiding decentralized management and waste of resources; collaborates in the collection of hazardous waste, large pieces of waste, and horticultural waste to reduce the cost of household waste management. One-key call and one-stop collection to achieve the bioreclamation of living waste resources and to work towards a better habitat. One chain of recycling, using the "two-net integration" model, which is coordinated with the sanitation clean-up system, by sorting waste through "home-services" regenerating business channels of the car scavenger-scavenger centre, which establishes an industry-wide chain closure system for collecting, transporting, sorting and using the "one chain". Wisdom regulates a web of information based on a "door-to-door" information register, building a five-walled intellectual management platform. Process real-time, transparent management, standardization of supervision of intelligence "city brain", contribution "waste classification". Ii. Life-services the concept of "old for new" promotes the extension of the social responsibility of manufacturers of all types of items of livelihood to provide rapid, accessible and affordable supplies and services。