Two tubes welded toghter,light,elastic,easy to handle,anti-erosion,resistant to fire,and easy ... and lacquer factory.Characteristics: 1) Two tubes welded toghter,light,elastic,easy to handle,anti-erosion,resistant to fire,and easy ... /32101616.5XZII-12×31/2121819 PVC Fiber Reinforced Twin Welding Hose