New: self-drillinganchorbolt

sinorock (30)in self-drillinganchorbolt • 2 years ago
Self-drilling hollow anchor bar V.S. mortar bar
Anchor bolt supporting technique can give full play to the self-stabilizing ability of the surrounding rock, and is widely used in the surrounding rock support of highway and tunnels. The mortar…
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Self-drilling hollow anchor bar V.S. mortar bar