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EntertainmentVideo: Fire guns spray water through concrete walls, iron doors
PyroLance Firearms spray water with extremely high pressure, can penetrate concrete and metal, help improve fire fighting ability.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.
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Why are there no male queen bees?
The mystery of the 'doomsday' cinema, built in the desert but not a single person has visited for more than 30 years
Mystery of dozens of giant circular structures at the bottom of Lake Michigan
US ship becomes world's largest artificial reef
Wreckage of mysterious missing bomber found after 80 years
Surprised to know the identity of the Russian missile debris 'hunter'
Australia releases chemical composition data of nearly 1 million stars
NASA shuts down plasma device to save spacecraft 20.5 billion kilometers away
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