Woods,it is the earth's natural , energy effcient and renewable building material , which get from the trees as the raw materials ,that manufacture the woodworks such as the core board ,plywood , furniture ,Wood carving , ect. Wood can also be called Log, logs are the original length to the size, shape, quality standards or special provisions cut into a certain length of the wood , the wood section called logs. The main species of wood are Eucalyptus, Polar, Pine, Brich, etc. they mainly grow in Russia, California,Montana,etc.