... briquetting fuel, firewood, cow dung ,corn cob,crop stalks (corn, rice, straw, etc.) as well as sawdust, peanut shells, sugar aldehyde ... residue, leaves, rice husk and so on . ParametersModel:QHL-ITable Size:510*510 ... hypoxia and cold in mountain areasMore pictures for reference biomass cooking stove with low emissions,smoke-free