PREVIEW
... raw materials.
The exchange ratio remained the same as before:
One ton of stone = one jin of rice
One ton of sand = one jin of rice
One ton of limestone = one jin of rice
...
These people were very busy, and within a day, Big Camphor Tree Base had exchanged hundreds of jins of food with these people.
But for the base, it was not a loss; on one hand, they exchanged hundreds of tons of raw materials for a small amount of food.
On the ...
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