Ice making, the formula and manufacturing technology of soap and soap laundry detergent, and the relevant knowledge are all in Yang Cheng's mind, so he doesn't have to think about it deliberately.

In fact, Yang Cheng himself doesn't know why, some of the impressions of the books he read in the library in his previous life are very vague, as long as he thinks about it, he can remember it immediately.

And the details in the book can be remembered clearly, as if the memory has become particularly good.

Yang Cheng is now mainly ......

"The Lord of Destiny" Chapter 50 Show the good side is in the middle of the hand, please wait a moment,

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