Coal pitch, cendhak kanggo coal tar pitch, coal tar distillation Processing sawise mbusak ampas distillate Cairan, belongs kanggo jinis aspal Ponggawa, umume kanggo Cairan kenthel, semi-padhet utawa ngalangi, ireng lan mengilap, umume ngemot karbon 92 ~ 94%, hidrogen babagan 4 ~ 5%. Batu bara...
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