SPIRAL DRILL COLLAR

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SPIRAL DRILL COLLAR
Posting date : Nov 07, 2008
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82-
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Detailed Description
Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from differential pressure. Our products are manufactured strictly according to API Spec7-1 and standard SY5144. MSN:cindy831212@live.cn

ECROBOT CO., Ltd, Business Registration Number : 220-88-71747, CEO J.W.Park, TEL : +82-2-552-7676, E-mail : E-mail : Contact us
Address : (Hwanghwa B/D 11F, Yeoksam-dong)320, Gangnam-daero, Gangnam-gu, Seoul, South Korea
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