rockbolt

Double yield tube of rockbolt :In high pressure strata, it can be deformed, reduce and release the stress Double yield tube of rockbolt In high pressure strata, it can be deformed, reduce and release the stress in order to protect the rod of bolt breaking ,increasing the bearing strength of domed plate . Double yield tube of rockbolt

Rockbolt rolling machine, can be used for grouting anchor ItemZH28-215ZH28- ... ）1950×1800×16002500×1450×16501550×1450×13501350×1210×1350 hollow rockbolt rolling machine

... ; 2)high strength; 3)great pretightening load concrete steel resin rockbolt without longitudinal rib executes MT146.2-2002 standards,and is ... bending & shearing is greater than rod, be new kind of rockbolt.It possesses the feature of high strength,reasonable structure,great ... ,it can be modified without separate notification. concrete steel resin rockbolt without longitudinal rib

... 3.With high strength head 4.Low price Prestressed hollow rockbolt consists of steel shell-expansion anchor head, hollow anchor rod ... .5/5.0/6.0length tolerance±2.5% Prestressed hollow rockbolt supplier

... give me more info about the cooperation. tuerca/rock bolt /rockbolt nut/spherical nut/spherical seat

1.square hole dolly adaptor 2.use in rock bolt rig 3.square hole 4.dia 24mm 5.high quality 1.square hole dolly adaptor 2.use in rock bolt rig3.square hole4.dia 24mm5.high quality Pneumatic rockbolt drill rig square hole dolly adaptor

... collapsing, extra-long anchor is needed instead of ordinary one. Rockbolt self-drilling anchor embodies drilling, grouting and anchoring as a ...

... . Due to it's cuttability FiReP SPINMAX GRP Self-Drilling Rockbolt is an economical alternative and also enormous advantagies for modern ...

1.FRP Rockbolt 2.Surface: All- threaded/sandblasted 3. Diameter: 3-40mm 4. ...