China has the world largest reserve of tungsten and China is the main producer. 

Tungsten has extreme kinetic energy power rate. Virutally there is no defense against it when it travel at high velocity speed. It can go through steel like it is nothing.  I mean it can make nations disappear literally at high velocity in mass quantity.  China can easily weaponize these if any nation want a fight with China.

I doubt any nation want to challenge China in the next couple hundred years. Maybe they can talk and act tough. That is pretty much about it.