... tube carbon fiber heating silk wrapped with thermal insulation material glue hose, hose, flexible hoseuesed in sanitary napkin line,baby diaper ... flexibility, anti-sticky and high-temperature resistance;2. Greatly minimize glue charring;3. Built-in carbon fiber heating silk;4. Outside ... . Inner Dia. (mm): 6, 8, 12, 16, 20, 25. (Flexible) glue hose