Hollow grouting self-drilling anchor bolt is a bolting solution for unstable ground conditions such as sand, gravel, silt and clays, and for soft to medium fractured rock formations.
Hollow Grouting Self Drilling Anchor Bolt
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Hollow grouting self-drilling anchor bolt is a bolting solution for unstable ground conditions such as sand, gravel, silt and clays, and for soft to medium fractured rock formations.
Hollow Grouting Self Drilling Anchor Bolt