There are three common types of carbon in the market: Combustible charcoal, charcoal and machine-made charcoal. Flammable charcoal is sold in Linyi Jia Wang barbecue products, with two kinds of square and cake shape. Flammable carbon has a flammable layer on the surface, which is easier to ignite than ordinary charcoal. The disadvantage is that it is more expensive. The advantages of ordinary charcoal are cheap, the disadvantages are different sizes, uneven firing time during barbecue, short combustion time, and charcoal in the process of roasting. 

The mechanism carbon is actually composed of carbon and coal mixed into a hollow multi prism, and it can be seen from coal ash. This kind of carbon has uniform size, long combustion time, uniform firepower and smoke-free, and the price is not expensive. The shortcoming is that it is not easy to ignite.