... sample 1.High puirty of Medium temperaturer balck viscous Liquid coal tar oil for deep processing 1.CAS:8007- ... and equipment, Baoshun Chemical could extract medium-temperature pitch, modified pitch, industrial naphthalin (solid and liquid), fuel oil, light oil, ... fiber, pesticide, dyestuff and medicine as well as basic raw materials in such sectors as metallurgy, construction, textile, paper making ...