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Tuhai Oilfield Breaks 3,000-Meter Deep Pumping Barrier
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Jinzhou Petrochemicals marine fuel production hits a new record high
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Xinjiang Oilfield Drives Efficient Shale Oil Development through Innovati…
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Daqing Refining and Chemical achieves domestic substitution for ammonia c…
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Tuhai Oilfield explores new approaches to improve recovery efficiency
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