为更换缠绕在天车和游动滑车周围的钻井钢丝绳用。

To replace the drilling line wrapped around the crown block and traveling block.

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石油用钢丝绳是油田重要钻井器材之一。

Oil-field wire rope is one of the important drills for oil-field.

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石油用钢丝绳是油田重要钻井器材之一。

Oil-field wire rope is one of the important drills for oil-field.

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