Friction Bolts
Sep 17, 2025
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Product Description: 33mm Welded Split Sets Tunnel Support 33mm Welded Split Sets Tunnel Support Product Description Friction bolt is a ground support tool used in mining, tunneling and civil engineering. It mainly ...learn more
33mm Welded Split Sets Tunnel Support

33mm Welded Split Sets Tunnel Support
30000 pieces per month
$3-$300
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HEBEI MINETECH MACHINERY TECHNOLOGY CO., LTD

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4 Years
Replace a batch

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