Chapter 91: Papermaking Ice-Making Method

blems with sourcing raw materials and details, and he needs some more time."The new recruits hauled coal back from Old Black Mountain three times yesterday. However, the downhill path hasn't been fix...owever, gunpowder is a serious matter after all. If used well, it can change the world. So, how to make it and how to use it, one must still plan carefully.It's not that Yang Lin doesn't trust the sec...