Teflon Roller, anti-sticking, high temperature resistance. Max diametre is 1 m. Max length is 10 m. Teflon Roller , Shanghai Donghui Roller is very good at this, which is well knownexpert all over the world, which is famous manufacture in making rollers.Teflon Roller’s Details:Materials: 20#, 45#, forge alloy steel (42GrMo,38GrMoAI), heating treatment and mechanical processing, hardness is HRC55~ ...