... SGS,CIQ,ISO,COA,MSDS4.Supply Free sample5.Appreance:black liquid 2.DescriptionCoal tar is a kind of organic compound ... extract medium-temperature pitch, modified pitch, industrial naphthalin (solid and liquid), fuel oil, light oil, hydroxybenzene oil, carbazole, indole and ... other products, falling into over 30 kinds. The above series products are basic raw materials of chemical products like synthetic ...