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Book Description paperback. Condition: New. Language:Chinese.Paperback. Pub Date: 2017-05-01 Pages: $number Publisher: China Petrochemical Press this textbook series belongs to the first Zhongyuan oilfield. is China's petroleum and petrochemical system in the position of the competency requirements. in the learning map under the guidance of the development of actual combat-type training materials. Its characteristics are: 1. Highlight the actual combat and effectiveness of training. teaching materials to strengthen practical skills . Seller Inventory # DP050642