The hydraulic hose is mainly composed of a liquid resistant inner layer, a middle layer, a 2 or 4 or 6 layer steel wire winding reinforcing layer and an outer rubber layer. The inner layer has the function of making the conveying medium bear the pressure and protecting the steel wire from erosion. The outer layer protects the steel wire from damage and the steel wire layer acts as a reinforcing material for the skeleton material.
 Hydraulic hose type, model have done before the introduction, then you know how many years of hydraulic hose can be stored it? First, the hydraulic hoses used in the assembly assembly must be within 4 years, calculated from the date of production of the hydraulic hoses. Furthermore, the hydraulic hose assembly from the date of production from the date, its useful life shall not exceed 6 years, in this 6 years, the storage time shall not exceed 2 years.