... , Bamboo, wood, straw dust, Mustard stalk and cotton stalks ,nutshell, coconut shell ,etc Working principle:Briquette machine uses a large ... industries..Furnace & Foundries : It can be used for metal heating & melting (where melting point is less than 1000d/cel ... the total, substitute of steam coal.Residential & Commercial Heating : For winter heating in Cold areas and Hotels, Canteens, Cafeterias and ...