Grenade cut in half - photo

[desbromilow]

Here you go Des,
Different countries obviously use different methods, but you were close in your thinking only the fragmentation particles at least in one process are mixed in a polymer and spun formed by multi axis rotations.
How grenade is made - material, history, used, processing, parts, components, composition, History, Raw Materials

Thanks!!! - another bookmark added to my list of "how to make stuff, and ideas worth repurposing" - Thanks,