ZXU High Pressure Hydraulic Hoses ZXU High Pressure Hydraulic Hoses Tube: Oil resistan synthetic rubber. Cover: Oil, abrasion and weather aging resistant synthetic rubber. Temp.Range: -40°C~+93°C Max. change in length: -4%~+2%(under W.P.) Reinforcement: Two layers of steel wire braids. ※Operating temperature in excess of 93°C may materially reduce the service life of hose assembly.