Hose structure Inner tube:Oil resistant synthetic rubber Reinforcement :Two braid of high-tensile steel wire Cover:Environment resistant synthetic rubber Temperature Range:-40â?? to 120â?? Working pressure:1160 psi-5076 psi Surface:Wrapped cover or smooth cover Application: High pressure hydraulic oil lines used in the hydraulic system of multifunctional mining machinery and engineering machinery which use petroleum or water based hydraulic fluids.