Generally divided into steel wire braided hydraulic hose and wire wound hydraulic hose.Within the hydraulic hose is mainly composed of liquid resistance protectionlayer, middle layer, 2 or 4 or 6 layers of steel wire winding reinforced layer, a rubber, inside rubber has the medium pressure, protect the wire from the effect of erosion, rubber cover to protect from damage of steel wire, steel wire layer is the skeleton material enhanced role.