136173 ⎘
Anchoring-bolts for roof, floor in galleries or longwall working , or shaft-lining protection Protection against corrosion
Rock Bolt Device with Replaceable Head
#2Anti-Friction Washer System
#3Strand, cable bolt and its installation
#4Yieldable cone bolt and method of manufacturing same
#5Corrosion-protected, self-drilling anchor and anchor subunit and method for the production thereof
#6Method of Assessing a Multilayer Strata for Rock Bolt Installation
#7Mining Component Coating Process
#8Self-draining rock anchor