Which domestic manufacturers produce extracted oil (aromatic oil)?
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Which domestic manufacturers produce extracted oil (aromatic oil)? What is the scale of the device? What are the quality specification values?
Takahashi Petrochemical seems to have it, Daqing Petrochemical does as well
Devices equipped with benzene extraction all produce raffinate oil, but whether it is sold or not requires you to check the product catalog. Raffinate oil is generally treated as light chemical oil; you can ask about this.