A company in China’s southwestern province of Yunnan has been testing a new heavy-lifting drone that can be used for construction projects.
https://youtu.be/Fi3j24EMyFc
The unmanned aerial vehicle can carry payloads weighing up to about 300kg (660lbs) allowing it to deliver building materials to electric power infrastructure sites at altitudes of 3,000m (9,842ft).
Source: South China Morning Post