Is this the true crack or something like? How to make a large scale?
It may just be the translation, but cement has a lot of stuff in it that is not transducive for chemistry like aluminum, limestone sand ect. Portland sement (calcium oxide, ph11) or hydrated lime (CaOh, ph 12) is what you want.There is need lots and lots of leaves, sulfuric acid, gasoline cement and lots of baking soda. But it is a really unprofitable and old-fashioned psychtropic.
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