PA11, PA12 (PA6) the nylon tube uses the imported materials, has the good physics and chemistry and the mechanical property: The wearability, the surface is smooth, the resistance is small, can prevent to rust with the scaling. Soft, easy curving, is advantageous for the installment, the processing is simple. May finalize each kind of shape curving. The ability many chemical substance's corrosion, the size is stable, the penetration coefficient is small, the resistance is enormous, above service life ten years. The heat resistance is good, may work under the - 40 degrees Celsius to 120 degrees Celsius environment, may transport the compressed air, the water, the bunker oil, chemistry resolver, the liquid state and so on. The product conforms to GB16897-1997, the national compulsory product authenticates the 3C authentication