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v3 Chapter 41 chaotic struggle
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v3 Chapter 43 Double ghosts beat the door
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... irreplaceable and rare metal in industry. In terms of value, copper is even more valuable than gold in industrial applications.
And copper is also a strategic material.
Bullets or shells, no matter how the technology is updated, are still inseparable from the demand for copper.
Under Zhao Jiangchuan's earnest teaching, He Tianya knew the true value of the Lunmwana copper mine.
It is no exaggeration to say that mastering a copper mine is not necessarily worse than mas ...
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