"That's true," Allen nodded. "It indeed needs some special processes and a unique proportion of raw materials to make cement."
"Even so, its cost was not very high, because it could not only be used to build houses, but also to build walls, roads, and all the buildings that needed to be built in the world."
"What's the price?" Someone asked the question they were most concerned about.
"About one copper coin per catty. If you buy a lot like this, it will be 10% cheaper." Allen smiled.
According to his calculation, the actual cost of each catty of cement was only about 2 copper coins. Once the cement kilns started to work, they could produce at least 400 tons of cement every day.
One ton was equal to 2000 catties. He could probably earn 0.7 copper coins from these merchants per catty. If they could be sold out, they could earn 4 silver coins per ton of cement and 56 gold coins per day.
It was like getting rich! Even the tax in Athens couldn't make money at such a high speed.