Thread bar Bolt is composed of screw thread steel bar , high strength plate ,casting damping nut ,yield tube, washer , and other accessories . According to the structure of steel bar ,the bolt has two stypes : Rib Rebar Bolt and Non-Rib Rebar Bolt . The bolt is usually used in thick coal seam ,that has high stress, large deformation, difficult to support and other poor environment .
chemical rock bolt
| Brand Name | |
| Place of Origin | China |
| Model Number | 16 18 20 22 25 |
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