Chu Mansion, study.
After sending Fu Shou back, Jason Chu returned.
At this moment, he brewed a pot of tea and took out a blueprint in his hand. Jason Chu nodded frequently while sipping the tea, with a smile on his face.
Cement, and also illustrations of the production of cement of various grades.
I have to say that the invention of this thing is definitely one of the greatest inventions in human history. Not only is it extremely stable, but the materials used are also very common.
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