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  • Balanced Pressure Drilling System deployed at Liang Tang Tunnel Project

    • November 18, 2016
    • Posted by: admin
    • Category: News
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    managed pressure drilling system
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  • Introducing Cement Displacement Technology

    • October 1, 2015
    • Posted by: admin
    • Category: News
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    sigra cement displacement technology
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  • Cyclonic Gas Liquid Separator

    • October 1, 2015
    • Posted by: admin
    • Category: News
    1 Comment
    sigra cyclonic gas liquid separators
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  • Gas Content Without Coring

    • October 9, 2014
    • Posted by: admin
    • Category: News
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