... , surface looks smooth and flawless. Machine-made CharcoalExport Grade-A charcoal quality standard: smokeless, non-toxic, tasteless, surface looks smooth ... section tidy, a very refreshing sound of metal steel when charcoal knock charcoal, good hardness, specific gravity:1.3-1.5, ... tidy, a little bit refreshing sound of metal steel when charcoal knock charcoal, good hardness, specific gravity:1.1-1.2, ...