Zhou Lang went to the valley craftsman's workshop, and the mine to check them one by one.

Because in the past few days, Xiang Xinjun has mobilized craftsmen.

A glass workshop has been set up.

Some of the craft skills Zhou Lang said began to be practiced seriously.

Although the manufacturing process of the bulb is too delicate.

However, according to Zhou Lang's instructions, it took three days to Xiang Xinjun and the craftsmen.

......

Chapter 848 of "The Foolish Prince of Zhenguo" belongs to Zhou Lang's modern industrial empire! I am hitting it in my hand, please wait a moment,

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