zuanlongbits@gmail.com

+86-029-82612068

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Email: zuanlongbits@gmail.com

Tel: +86-029-82612068

Fax: +86-029-82612068

Address:No 66, Changming Road, Xi'an, Shaanxi Province, China

26mm Roof Bolting Bullet Drill Bit Coal Mine Roof Bolting Bit Manufacturer ,Best price for sale

26mm Roof Bolting Bullet Drill Bit Coal Mine Roof Bolting Bit Manufacturer ,Best price for sale

1. Outperform carbide drilling by 100 to 300 times longer 2. Utilize self-sharpening technology 3. Increase penetration rate 4. Replace percussion drilling 5. Reduce drill maintenance 6. Lower drill steel cost by reducing thrust requirements and extensive wear 7. Significantly reduce...

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