The mater is carbon fiber, or carbon composite, it has high strength and light weight. It’s more durable than metal. And carbon fiber tube is corrosion resistance, high temperature resistance, etc. So it has a long life. Besides, we can provide round tube, oval rube, square tube, etc. The technologies that we use have roll-wrapped, winding cross, pull-winding, etc. It can be used in industry, auto parts, etc.