42mm High Strength Black Oxide Split Set Friction Bolt for Tunneling and Mining

ADA
Aug 13, 2025
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42mm Split Set Bolt Friction For Gold Mine Use High Quality Friction Bolt for Gold Mine Use Pipe-slit anchor rods, also known as seam-tube anchor rods and friction anchor rods, are active reinforcements for surrounding rock. They feature full anchoring and immediate bearing capacity. When installed in a borehole slightly smaller than the pipe diameter, they immediately exert radial pressure on the hole wall over the entire length to prevent surrounding rock from sliding.
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