As China ramps up exports of robots and AI, global buyers are turning to automation to tackle risky and repetitive jobs, raising questions about how work will change.  GUANGZHOU: Installing cables on live power lines. Cleaning skyscraper windows hundreds of metres above the ground. Chasing birds away from airport runways. These are jobs long considered too dangerous, repetitive or labour intensive for humans. At the Canton Fair in Guangzhou which is China’s largest trade exhibition first