It is called hollow cenosphere. Including some gases in the balls and clean by cenosphere process. The hollow beads function as pockets of encapsulated air within the explosive matrix. When the explosive is detonated, the pockets of air become hot spots that concentrate the explosive and generate high temperatures.

It is called hollow cenosphere. Including some gases in the balls and clean by cenosphere process. The hollow beads function as pockets of encapsulated air within the explosive matrix. When the explosive is detonated, the pockets of air become hot spots that concentrate the explosive and generate high temperatures.