JUS K R1 210-1993 Core drilling equipment - Fishing tools - Casing tube recovery taps《空心钻具 打捞工具 井壁管打捞公锥》.pdf

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SY T 5572-1993 钻井用打捞工具分类与通用技术条件.pdf

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SY T 5246-1991 修井打捞工具通用技术条件.pdf

SY T 5572-2012 钻井和修井用打捞工具分类与通用技术条件.pdf

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