ROCK BOLTING & ACCESSORIES

rock bolting
rock bolt
rock bolting accessories
rock bolting accessories
rock bolting accessories
rock bolting accessories
rock bolting accessories

“JB-12” Rock Bolts & Accessories - Expansion Shells- & Mining Accessories
During The installation at the work point, the expansion shell is activated by applying torque on the nut end, which will force the shell leaves to expand and hence to engage the unit in the hole.