C1604

Especially oil, deserts, and the seabed. There were many discoveries, but the mining process was extremely difficult!

The cost of mining would be very high, and this still needed to be upgraded. In any case, when the country developed in the future, they could go and mine it, and when they did, they would be free to do so.

Early in the morning, Bai Xiaobei opened his eyes.

In front of him