
At 2/9/2014 , Petro China DaQing petrochemical branch company 3.5 tons/year of petroleum sulfonate project go into trial production. This device is currently the largest petroleum sulfonate industrial production equipment.

At 2/9/2014 , Petro China DaQing petrochemical branch company 3.5 tons/year of petroleum sulfonate project go into trial production. This device is currently the largest petroleum sulfonate industrial production equipment.
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