We are specializing in the production of PVF coated tube bundy tube PA coated ... many years .Low carbon steel tubeDouble wall (cut to length & in coil) O.D.:4.76mm,6.00mm,6.35mm,8.00mm ... , yellow zinc, PVF,PVDF,PA11,PA12Single wall(cut to length & in coil)O.D.:4.76mm,6.00mm,6.35mm,8.00mm ...