sprinklers

Switzerland is a more exotic country than you think, here are 10 specific examples
Europe's largest watch face is not Big Ben, it is in Switzerland.
Do you believe this gun can fire water saving more than 100 times?
Currently, using a sprinkler is a measure of firefighting force that is the most common way to fire.
Japanese scientists unveil automatic fountains that
This device is a water-spraying elephant that can automatically move, extinguish a fire, without the need for direct human interaction, like traditional nozzles.