... , groundnut shells, Bamboo, wood, straw dust, Mustard stalk and cotton stalks ,nutshell, coconut shell ,etc Working principle:Briquette ... Units, Oil Extraction Units, Solvent Extraction Plant and many other plants and industries..Furnace & Foundries : It can be used for ... Heating : For winter heating in Cold areas and Hotels, Canteens, Cafeterias and house hold kitchen appliances etc.Photos for your ...