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Biphenyl is also an important fine chemical raw material widely used in the production fields of medicine, daily chemicals, pesticides and liquid crystal screens; and the downstream extension products are rich in variety and can form an industrial chain. At present, domestic biphenyl producers are few, the output is small, and the grade is low. The market gap of biphenyl, especially high-grade products, is large, and it relies heavily on imports. At present, the indicators of the biphenyl products of Jindong Company have reached the international advanced level, especially the content of impurity sulfur and chlorine, which is almost close to zero, and one third is used for export.
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