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Changsha Chaojingang Machinery Manufacturing Co., Ltd.

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City:changsha

Country/Region:china

Contact Person:MrWilson Chen

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2" to 24" DTH Rock Drill Bit DHD COP SD QL Mission Br Numa for Hole Range Dia 135 155 mm ISO 9001 2000 Certification

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Advantages: 1. Our products can match over 95% against the original products. 2. High quality raw material, with premium hardened procedures for long ...

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