... density 3.Raw materail can be sawdust, straw, coal powder straw briquette machine 1. Our straw pellet machine (Patent NO:200720157337.9 ) ... . Because of the high pressure and stable operation, our straw briquette machine (flat die pellet mill) can make good density ... wood sawdust, corn stalk, rice husk, cotton stalk, weeds, crop straw, paper, plastic, cocopeat, bran, home wastage, factory reject and so ...