... stalks ,nutshell, coconut shell ,etc Working principle:Briquette machine uses a large screw to grind, compress and ... to form into various moulds of high density briquette, such as hexagonal,quadrangular, square,etc. As ... . National patent 6. Reasonable price Main data: Model Power(kw)Capacity(kg/h) Weight(kg) Moisture ... . Thank you ! good quality wood charcoal briquette machine with favorable price