CONNECTION DEVICE AND SYSTEM FOR SUSPENDING A MONORAIL BEAM FROM A ROOF BOLT

Reaming and self-rotating anchor rod and using method thereof

Full-roadway full-process full-cross-section surface deformation monitoring device and method

Automated device for drilling a hole in the vault and walls of a tunnel and for installing an anchoring element into said hole

SYSTEM AND METHOD FOR VERTICAL PIPING SUSPENSION

Fastener and installation device

Plumbing bracket assembly

Ventilation ducting arrangement

System for spraying water to reduce dust while drilling in a mine tunnel

Over/under monorail system for longwall mining operations

Line protecting apparatus

Expandable rock bolt and rock bolting system

Air duct support

Inspectable tunnel for underground pipes and cables

Mounting device for a cable cup

Pipe hanging system