Carbon fiber cloth is also called carbon fiber cloth, carbon fiber cloth, carbon cloth, carbon fiber fabric, carbon fiber belt, carbon fiber sheet (prepreg), and the like. Carbon fiber cloth is a unidirectional carbon fiber product that is usually woven with 12K carbon fiber. The lightest weight is 1K carbon cloth. China carbon fiber frame bicycle and tripod basically use 3K carbon cloth. 1K carbon fiber pipe is very strict due to the grade of carbon wire, the composition of resin, the density of carbon cloth, the pressure temperature of molding, etc. The price of 1K carbon cloth is 3 times that of 3K carbon cloth. Two thicknesses are available: 0.111mm (200g) and 0.167mm (300g). The carbon fiber cloth has high strength, small density and thin thickness, and basically does not increase the self-weight and cross-sectional size of the reinforcing member. Carbon fiber is widely used in various types of structures such as building bridges and tunnels, reinforcement and repair of seismic structures and structural reinforcement of joints.