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The String Mill is designed to clean out casing and whipstock windows. Their short leading and trailing angles, allow the mill to clean "bird nest" and other obstructions in the string, while the bottom hole tool is milling. This string mill assures that 磨銑工具
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The String Mill is designed to clean out casing and whipstock windows. Their short leading and trailing angles, allow the mill to clean "bird nest" and other obstructions in the string, while the bottom hole tool is milling. This string mill assures that the milled section maintains full gage

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