الوصف

Charcoal is charcoal, or black hollow solid fuel remaining from incomplete combustion of wood or wood raw materials, or pyrolysis in isolation from air.   Charcoal is amorphous carbon that saturates the original structure of wood and remains tar in the pores. Charcoal was used in smelting bronze items in the Shang Dynasty and iron items in the spring and autumn period and the Warranty State period.