Carbon Fiber Square Tube with Rounded Inner Shape Size. 3mm x 3mm side length in cross cection(Square), 2mm inner round diameter, 400mm overall length. Pultrusion. Pultruded tube means that all the fibers are in one direction, which makes it stronger than the woven tube in tension. Lightweight. 1.5g/cm3(1.5 Gram per cubic centimetre) in density, strong as metal but only one fifth in weight. Corrosion-resistant and heat-resisting. Smooth surface. Made from high tensile and modulus unidirectional carbon fiber, with polishing finish. Application. Pultruded carbon fiber tube is used for racing drones, RC helicopter wing, RC airplanes and RC sailboats, kite spars. Tube Shape: Square with rounded innerCross Section Size: 3x3mm square, 2mm inner diameterOverall Length: 400mmFinish Type: GlossyPackage Content:2 Pcs 3x3mm x 2mm Inner Diameter Carbon Fiber Square Tube
