该机具有长冲程、软性换向、对称对拉、高度平衡、高效节能、大载荷等特点，经过辽河油田试用，效果良好。
It features long stroke, soft direction changing, balanced height, high efficiency, and high power. The practice shows good efficiency in Liaohe Oilfield.
该机具有长冲程、软性换向、对称对拉、高度平衡、高效节能、大载荷等特点，经过辽河油田试用，效果良好。
It features long stroke, soft direction changing, balanced height, high efficiency, and high power. The practice shows good efficiency in Liaohe Oilfield.
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