Shaanxi Zuanlong Drilling Machine Co., Ltd. - Xian, China


1. Outperform carbide drilling by 100 to 300 times longer2. Utilize self-sharpening technology3. Increase rate of penetration4. Replace percu ...
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1. Outperform carbide drilling by 100 to 300 times longer2. Utilize self-sharpening technology3. Increase rate of penetration4. Replace pe ...
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 394

Zuanlong Bits are new and revolutionary for improving the efficiency and mining costs associated with drilling. · Drills 50 - 200 times longe ...
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