Pultruded Square Carbon Fiber Tube 2.5x2.5x1.5mm RC-1611 - Carbon Fiber Star Square Carbon Fiber Tubes 6x6mm Square Carbon Fiber Tubes 6x6x5x200mm Inner RoundDiameter 5mmPultruded Carbon 6x6mm Carbon Fiber Rods Pultruded in an epoxy resin, Carbon Fiber square pultruded tubes are exceptionally straight and rigid and are an ideal building material for frames, trusses and for use as reinforcing material. These square tubes are lightweight, low cost and are stiff in bending as the carbon fibers run along the length of the tube Feature: Very strong and light ,high conductivity., High temperature resistance Carbon Fiber Square Tube 3K Twill Glossy Rectangular Carbon Fiber Tube 3k Twill Glossy Rectangular Carbon Fiber Tube Use:RC Airplane,golf bag,Flag pole, industrial use, curtain,cases, umbrella,handbags,bow and arrow,Etc