P4 P3-type stainless steel hose: Material for the 1Cr18Ni9Ti/0Cr18Ni9 purposes: as automated meter signal wire protection tube and protection tube instrument. Ultra-small diameter stainless steel hose (4mm-12mm) for the sophisticated electronic equipment, the protection of the sensor line provides solutions for the scale of precision optical sensor circuit protection, industrial sensor circuit protection. Has good flexibility, corrosion resistance, high temperature, wear resistance, tensile. Rohs certified by the same abundance of hose, in line with national standards and the U.S. European standards.