Drones give rural economy tech push

"Rural deliveries in China aren't easy," said Yang Guoping, a village postman in Hanggai township, Anji county, East China's Zhejiang province, since 1992.

He rises early, has a quick breakfast and pedals several hours from the post office in the town center to remote villages, bringing parcels, letters and newspapers.

His routes, many kilometers long, are mainly rugged and narrow mountain roads, linking every village like blood vessels. Yang often falls in the rain or snow.