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SDA hollow drilling rock anchor bolts |
| Self-drilling anchor bolt anchor bar anchor rod grouting and anchoring as a whole. Widely used as an efficient anchoring means, in tunnel presupport, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, |
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Accessories |
| Self-drilling anchor drilling include drill bit coupling nut and anchor plate grouting and anchoring as a whole. Widely used as an efficient anchoring means, in tunnel presupport, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geo |
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