... packed.Products features:Small volume, convenient of resistant to burn, storage and transportation, volume is only 1/30 of ... 9-1.4g/cm3Weight1300kg1500kg1800kg2000kgCalorie: 3500-5500 Definition: straw coal refers to corn straw, wheat straw, cotton, straw, husk, groundnut ... waste as raw material, through grinding pressure molding, close to " straw-coal" Application:Biofuels can replace straw, wood, ...