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Dth bits are mainly used for quarrying, ore mining, coal mining, soft, medium hard, and hard rock, blast hole drilling and water well drilling project, marble quarry or …

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China 60.3 mm drill pipe catalog of friction welding drill pipe 2 3/8" g grade with api 5dp, friction welding drill pipe/drill rod 2 3/8" with api 5dp provided by china manufacturerhebei shitan machinery manufacturing co., ltd., page1.

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