: Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.

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Gold concave spherical 8 inch DTH drilling tools of DHD380 drill bit 219 mm

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Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.

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Gold concave spherical 8 inch DTH drilling tools of DHD380 drill bit 219 mm

Contact Now

Gold concave spherical 8 inch DTH drilling tools of DHD380 drill bit 219 mm

1.15 years focus on rock drill bits manufacture. 2.High quality steel. 3.High abrasion resistant cemented carbide. 4.Advanced heat treatment technics. 5.Professional vacuum sintering technique. 6...

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rock drilling tools

rock hammer drill bits

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