39mm Mining Rock Friction Bolt Roof Support for Mine Seam Pipe
Aug 13, 2025
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# 39mm mining rock friction bolt
# mine seam pipe roof support
# friction bolt for roof support
39mm Mining Rock Friction Bolt Roof Support for Mine Seam Pipe 39mm Mining Rock Friction Bolt Roof Support for Mine Seam Pipe Product Description The friction stabilization anchor is a new type of anchor that provides full-length anchoring and active reinforcement of the surrounding rock. It consists of an anchor rod and a support. The anchor rod is made of high-strength steel tubing with longitudinal slits. When installed in a borehole slightly smaller than the tubing
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