SUSPENDED MOVING AND ADAPTIVE COALBURST-PREVENTING HYDRAULIC SUPPORT WITH PILE FOUNDATION

ASYMMETRIC HYDRAULIC SUPPORTS FOR PSEUDO INCLINED MINING IN STEEPLY DIPPING SEAM

Automatic support device for resisting rock burst in mines

System for navigation detection and inclination measurement of advanced hydraulic supports

Method of treating tunnel collapse using pavilion support

Method of treating tunnel collapse with roof-contacted shield support

Hydraulic shield support system and pressure intensifier

Electromagnetic coil dispenser for improving waterproof performance

Temporary support and raising device

Sleeve holder for a hydraulic cylinder

Support for use in mine

Telescopic mine roof support

Telescopic pumpable props

SUPPORT PROP

Telescopic mine roof support

PROP

Apparatus for forming an underground tunnel

Prop for Mining, Construction and the Like

Telescopic safety device

Collapsible hoisting device for use in the construction of large metal containers, and removable accessory applicable thereto

Hydraulic prop comprising thin-walled exterior and interior pipes

Suspending hydraulic pillar

SUPPORT FOR UNDERGROUND MINING AND TUNNEL CONSTRUCTION

Method for joining the functional parts of hydraulic or pneumatic working devices, and joining connection

Similar simulation experimental device of hydraulic energy-absorbing roadway support

Hydraulic support unit and hydraulic support for anti-rock burst roadway