12mm x 10mm & 10mm x 6mm (Length:1000mm) Carbon Fiber/Fiber 3K Roll Wrapped Sliding Pair Tube
Round Carbon Fibre Tube, ext. ∅ 32 mm, int. ∅ 28 mm (2000 mm length)
Carbon High Precision Telescopic Tube Ø 185mm x ø 180mm
Rolling Process Carbon Fiber Tube 8000mm Custome Made Large Diameter Carbon Fiber Tube for Industry High Quality - China Carbon Fiber, Tube | Made-in-China.com