carbon fiber tube 1.Low Density: 67%~74% of aluminum 2.High ... .High Corrosion Resistance Korean Material 3K Carbon Fiber Tubes Made in China: Qualifications: SGS, REACH CompliantMaterials: carbon fiber, resin .Process: Roll-wrapping, Fabric Tube ... requirements about our product, please feel free to aks us for more information, we will reply as soon as possible.