Shaanxi hainaisen Petroleum Technology Co., Ltd. -

Shaanxi hainaisen Petroleum Technology Co., Ltd.

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pdc 5 blades drilling bit for soft formation
Specification: 8 1/2
Detail: ÎÄ &©|187; Ó¢Óï Deep long blade parabola shape structure, bottom hole fluid optimization design, favorable to the migration of rock dandruff and prevent balling; Low resistance to swing is designed, improved the rate of pen...


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