Lü Mingji. Improvement of Cutting Blade of the Horizontal and Directional Drilling Machine[J]. Oil & Gas Storage and Transportation, 1992, 11(5): 12-13.
Citation: Lü Mingji. Improvement of Cutting Blade of the Horizontal and Directional Drilling Machine[J]. Oil & Gas Storage and Transportation, 1992, 11(5): 12-13.

Improvement of Cutting Blade of the Horizontal and Directional Drilling Machine

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