... ,Portable,erosion resisted and easy operate.Weight only 30% of steel prop with same height. Emulsified fluid or hydrostatic water as working ... lane maintenance and road heading. All the key parts (movable prop, cylinder, pedestal, reset spring, etc.) adopt advanced erosion resisted technology ... (kg)212222.52527Driving MediumEMULSIFICATING FLUID, HYDROSTATIC WATER Light-duty Single Prop