We won the bid in May 2019 and supplied machines of crushing, screening and separating for the project with capacity of 600,000 tons/y. From the perspective of sustainable development strategy, our R&D team designed a high-efficient process, i.e. pre-positioning a process crushing before screening, which effectively improved the quality and purity of aggregate. The regenerated aggregate are of 0~10mm, 10mm~20mm and 20mm~31.5mm, with purity up to 98%. it is recycled into either bricks for venues construction or concrete for road-bed. The realization of green cycle makes a gesture of green Olympic Games by China.