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Category:  Manufacturers - Roof Bolts
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DSI Underground Systems DSI Underground Systems
DSI Underground Systems has facilities manufacturing underground mining and tunneling products and services located strategically throughout the US mining regions; Cambridge OH, Martinsburg WV, Louisville, KY, and Abingdon, VA.

DSI offers a complete product line including roof support products, plates, mesh, and dust suppression products.  For over 30 years, DSI has been the leading manufacturer of polyester resin cartridges which permanently secure roof support bolts used in mines to create stable and secure mine roof conditions.

Jennmar Jennmar
Contact via the websiteUSA, Pittsburgh, PA
We’re JENNMAR, a global, family-owned company that is leading the way in ground control technology for the mining, tunneling and civil construction industries.  Since 1972 our mission has been focused on developing and manufacturing quality ground control products.  Today we make a broad range of reliable products, from bolts and beams, to channels and trusses, to resin and rebar.  We’re proud to make products that make mining, tunneling and civil construction safer and more efficient.  And with more than twenty manufacturing plants around the world, we are uniquely positioned to react to ground control needs anywhere, anytime.

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