... straw,stalk pellets 2.rice husk,hard wood pellets 3.fertilizer and feed pellets 4.diameter from 2-15mm ... . They can press 2-15mm diameter biomass ,wood and fertilizer pellets from sawdust,stalk,straw,peanut,sun ... paper,palm shell or palm fiber,animal manure and do on. Now the flat die pellet mill ... national patent.Becasue,standing out from ring dies and other pellet mills is three rollers, adding one ...