| 摘要 |
<p>The present invention relates to a rock bolt hanger system for hanging mining services from the end of a rock bolt that has been installed through the rock face of a body of rock. The rock bolt has an elongate shaft which has leading and trailing ends, a nut, and a hanger. The nut is attached to the trailing end of the elongate shaft and the hanger is releasably attached to the nut.</p> |
