Often check the chain of the guide rail type of the tightness of the chain, the oil wire rope to periodically check the tightness of the oil wire rope.
经常检查一下导轨式升降机的链条的松紧程序，有油丝绳的要定期检查油丝绳 的松紧程度。
Oil-field wire rope is one of the important drills for oil-field.
石油用钢丝绳是油田重要钻井器材之一。
To introduce the varieties and structure of the wire rope for oil fields and its type selection of different use.
介绍油田用钢丝绳的品种结构及不同用途的选型。
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