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Point anchoring rock boltis composed of screw thread steel bar , high strength plate ...
Chemical rock bolt (Prestressed Bolt) : Thread bar Bolt is composed of screw thre...
(1) The bolts have high strength stress ,good support capacity can prevent the roof f...
grout bolt(Prestressed Bolt) : Thread bar Bolt is composed of screw thread steel b...
Installation Procedures 1.Drill a hole with punch according to the diameter ...
All Threadbar Bolt(Continuous Thread Rock Bolt): All Threadbar Bolt is used toget...
How to work Slit wedge rock bolt has five parts : wedge,rod,plate,spherical washe...
Feature : (1) The bolts have high strength stress ,good support capacity can preve...
Grouting Cable Bolt Cage Cable Bolt is made of steel strand,and have better suppo...
1.FEATURES : (1) Be made of steel strand,and has incomparable flexible capacity an...