Steam hoses are composed of an inner rubber layer, multiple layers of fabric-reinforced wrapping, and an outer rubber layer. Fabric-reinforced hoses consist of an inner rubber layer, multiple layers of fabric-reinforced wrapping, a spiral steel wire reinforcing layer, and an outer rubber layer. They are mainly made up of a liquid-resistant inner rubber layer, a middle rubber layer, 2, 4, or 6 layers of steel wire wrapping for reinforcement, and an outer rubber layer. The inner rubber layer functions to withstand pressure of the conveying medium and protect the steel wires from corrosion, while the outer rubber layer shields the steel wires from damage. The steel wire layer (φ0.3--2.0 reinforced steel wire) serves as the skeletal material for reinforcement.