Core material is the basic resource obtained by cutting down bamboo, trees and trees. It can improve the basic level of logging and increase production. It should be noted that the core material must be obtained when cutting bamboo, but the wood will be mixed when cutting _ tree and _ tree. So the most efficient way is to cut bamboo, where there are many bamboos, it is right. Bamboo is usually at the foot of the mountain, and some players' homes are next to bamboo. You can add friends and let others take you there. There are many bamboos in Dongshan. A place in Dongshan is called Fengyuzhou, where there are many bamboos.