The 140th China Import and Export Fair, also known as the Canton Fair, is underway in Guangzhou, south China, showcasing high-tech care and rehabilitation devices, from exoskeletons to stair-climbing wheelchairs. 

Millions of people worldwide need care and rehabilitation, and many can't afford it or reach it. CGTN's Zheng Songwu visits the fair's dedicated zone to test the latest devices and speak with international buyers about how China is helping meet that demand.