New breakthrough in emergency rescue! Firefighting drones can carry 8 kilograms of fire extinguishers and arrive at the scene of high-rise building fires within 3 minutes

New breakthrough in emergency rescue! Firefighting drones can carry 8 kilograms of fire extinguishers and arrive at the scene of high-rise building fires within 3 minutes

New breakthrough in emergency rescue! Firefighting drones can carry 8 kilograms of fire extinguishers and arrive at the scene of high-rise building fires within 3 minutes