... , rice husk, coffee husk, coir pith, jute sticks, groundnut shells, Bamboo, wood, straw dust, Mustard stalk and cotton stalks ,nutshell, coconut ... briquettes. The natural lignin content in biomass is liberated with wood fiber under high pressure and temperature.In the briquetting process ... will do my best to satisfy you. Thank you ! good quality wood charcoal briquette machine with favorable price