: Changsha Golden Drilling Machinery Co.,Ltd

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Drilling Tools Casing Adaptor Double and Single Wall Casing CQC Certification

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Changsha Golden Drilling Machinery Co.,Ltd

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Drilling Tools Casing Adaptor Double and Single Wall Casing CQC Certification

Contact Now

Drilling Tools Casing Adaptor Double and Single Wall Casing CQC Certification

Drilling Tools Casing Adaptor Double and Single Wall Casing CQC Certification Technical Parameter of JZTG Casing Joint Φ(mm) Bolt Number Weight(kg) 620/540 8 188 750/670 10 221 800/720 10 255 880/800 ...

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foundation rotary drilling

kelly bar spare parts

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