... flour, sawdust of a special device, widely used in paper making, mushroom, charcoal, particle board, sawdust board, HDF, MDF and other ... economic returns, to use and convenient maintenance. The small particle size after crushing the wood chips, wood fibers obvious advantages ... , wood product quality, low processing costs. Can also be used bamboo, grass, corn stalks, sorghum stalks and other cellulosic ...