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| company news |
| The Drill Collar shop went into operation end of Mar. |
| 2008-04-18 10:52:20 |
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(has been browse 1575 times)
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| The Drill Collar shop went into operation end of Mar. 2008 and the first delivery of Drill Collars have been delivered to America. The designed capacity of Drill Collar shop is 5000 joints of normal drill collar and spiral collars of various sizes. |
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| No relevant information |
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