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TianHe oil Group co., Ltd
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TianHe oil Group co., Ltd
TianHe oil Group co., Ltd
China

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    Kellys

    Kellys

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    Kellys

    Kellys is driving section of wohole drill stem. Kelly is available with square kelly and hexagonal kelly. TIANHE brand kelly are manufactured strictly from API Spec7-1 and SY/T6509-2000 standard.

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