coring drill bit | |
This 3-wing concave spiral bit is built for stable non-coring drilling in grouting and hydrological projects. It performs efficiently in backfill and dolomite, achieving drilling speeds of 3–6 meters per hour. ![]() | |
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Target Prov.: All Provinces Target City : usa Last Update : Jun 18, 2025 2:02 AM Number of Views: 12 | Item Owner : haris Contact Email: (None) Contact Phone: (None) |
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