The Steel string is mainly used for Oil pumping.

我们还可以提供其他类型的钢弦的不同品牌,规格.

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In sucker - rod oil pumping system, the sucker rod is its vulnerable spot.

在有杆抽油系统中, 抽油杆是其薄弱环节.

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The oil pumping bolt is composed by couplings connected of decades or hundreds of sucker rods.

抽油杆柱是由数十根或数百根抽油杆通过接箍连接而成.

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Due to the specific characteristic of oil pumping load, normal frequency converters achieve little.

由于抽油机负载的特殊性, 普通的变频器不能很好的发挥作用.

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Friction Reversing Type Oil Pumping Unit is a new kind of oil pumping system.

摩擦换向抽油机是一种新型的抽油系统.

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