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galvanized metric thread expansion bolt
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Product Description: As a professional manufacturer, we strongly recommend our Underground Mining Roof Support Expansion Shell. It is designed to be ...
2024-12-09 23:34:00
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... strength of 12.9 to 14.9 kN. It is designed for use in hard rock drilling operations, and provides a reliable and secure anchor for rock bolts. ...
2024-12-09 23:37:01
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