DN06-25/80 Inner Injection Single Hydraulic Prop

Structure of Underground DN Inner Injection Single Hydraulic Prop Underground DN Inner Injection Single Hydraulic Prop as internal structure of the mine for the fluid hydraulic prop, mainly consist by the roof, ventilation valve, cylinder, live cylinder, piston, hand pump, unloading valves, safety valves and handles body and other component parts. Underground DN Inner Injection Single Hydraulic Prop plays a big role in the mine roadway support, get the acceptance and use of