... and soft materials for hundreds of sorts, such as wood chump,scrap,bamboo scrap,rice hull,medical herb,shell,feldspar,bone xdrap,bone ... ,the ratio is 120,even up to 280.For instance,wood chumps about 30mm size can be made into 0.25 ... .In addition to its notable capacity, it gives off no waste gas and fume,put no any pollution effect on environment ...