... 4.usage:fuel,BBQ Material: The source of material is wide,could be coconut shell, peanut shell, stalk shell,corncob,sawdust and so on, ... wood shavings, bamboo crumbs ,sawdust,and rice hulk is the best of ... value >8000 calash content <5%volatilization <15%moisture<4% coconut shell of machine-made charcoal making line