Lingyu looked at the stone steps in front of her, these stone steps have a total of five or six hundred steps, and they are cast with dark iron, these dark iron is a very precious metal, a very common thing in modern society, and here it is actually used to make stone steps, it is really a hidden world, these metals are generally used to make various machines or other tools, Lingyu looked at these metals in a trance, if she can get these metals, is it possible to make a lot of machines or tools, she can make a lot of machinery to help others.

Lingyu looked around, and she turned and left the cave.

"Miss Lingyu, where are you going? &......

"I Won Ma in Xiuzhen Wen, Who Masters the World Bugs" Chapter 93: The Secret is in the hand, please wait a while,

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