Dongchen Stock-holding Group Co., located in the center of Shengli Oiffield of Yellow River Delta, was founded on Aug 8, 1994. The corporation started off as a small paint factory covering 9.9 mu with an asset of less than 1.20 million. Now, it has developed into the state's key high-tech enterprise with chemical and electromechanical industries as its leading business. It is also one of th...
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