5.5 Inch DTH Drill Bits DHD3.5 Rock Drill Bit Alloy Steel Heat Resistance

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Changsha Chaojingang Machinery Manufacturing Co., Ltd.

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Changsha Chaojingang Machinery Manufacturing Co., Ltd.

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City: Changsha

Country/Region: China

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5.5 Inch DTH Drill Bits DHD3.5 Rock Drill Bit Alloy Steel Heat Resistance

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5.5 Inch DTH Drill Bits DHD3.5 Rock Drill Bit Alloy Steel Heat Resistance

Advantages: 1. Our products can match over 95% against the original products. 2. High quality raw material, with premium hardened procedures for long life. 3. Full production chain to secure stable ...

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5.5 Inch DTH Drill Bits

DHD3.5 DTH Drill Bits

DHD3.5 Rock Drill Bit

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