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Conventional walking beam pumping unit has simple structure, easy operation, convenient maintenance, durability and be reliable features. It applies all kinds of raw oil producing, is a pumping unit with good overall performance. We have achieved API certificate. At present we have researched and developed CYJ3?5?6?8?10?12?14?16 model, and be applied in many oilfield at home.
It has exported to many countries such as Mexico
