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Chapter 487 Leprosy Village
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Chapter 489 The coming alien war
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... eople.
Tungsten steel alloy is an important raw material for making armor-piercing projectiles.
When the failure rate of sophisticated electronic equipment is extremely high, and there is no satellite network outside the atmosphere for navigation, the armor-piercing projectile has become the most important and even the only spear of the human steel torrent.
In the past, because of the lack of large tungsten steel veins, humans could not manufacture armor-piercing bullets in ...
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