... 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 ... pollution, safe and inflammablequality index:charcoal content >85%calorific value >8000 calash content <5%volatilization <15%moisture<4% coconut shell of machine-made ...