API Double Wall 219mm O.D. Double Wall Drill Pipe S135 Steel Grade

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Langfang Baiwei Drill Co., Ltd.

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City: Langfang

Province/State: Hebei

Country/Region: China

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API Double Wall 219mm O.D. Double Wall Drill Pipe S135 Steel Grade

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API Double Wall 219mm O.D. Double Wall Drill Pipe S135 Steel Grade

Product Description In order to realize the reverse circulation drilling process of the through-the-hole DTH hammer, the matching drilling tool system mainly includes a double-wall drill rod. In ...

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API Double Arm Double Wall Drill Pipe

219mm O.D. Double Wall Drill Pipe

S135 Steel Grade dual wall drill pipe

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