... , cotton stalks, rape stalks, peanut plants, sunflower stalks, bamboo sawdust, bagasse , wood chips, rice husk, coffee husk, coir pith, jute sticks, groundnut ... the shape to order. And the diameter of briquettes are from 50-80 mm. Moreover non-binder needs to be used ... do my best to satisfy you. Thank you ! good quality wood charcoal briquette machine with favorable price