Carbon fiber square/rectangular tubes use continuous carbon fiber filaments as reinforcement, matched with epoxy resin matrix, and are formed by high-temperature curing through pultrusion or molding process, with uniform cross-section and stable mechanical properties. The product has a density of only 1.6g/cm³, a tensile strength of more than 3000MPa, and an elastic modulus of about 180GPa. While achieving extreme lightweight, it maintains excellent bending and torsion resistance, far superior to traditional aluminum alloy and steel profiles.

In the field of high-end equipment, carbon fiber square/rectangular tubes are widely used: in UAVs, they are used for core stressed components such as frames and arms, which can greatly improve endurance and load capacity; in industry, they are used for robotic arms and automated equipment structural parts, achieving efficient weight reduction and precision maintenance; in automobiles, they are used for lightweight chassis and body frames, helping to save energy and reduce emissions; in sports equipment, they are used for bicycle frames, ski poles, etc., combining strength and portability.