Material: carbon fiber Mobile phone shell material: frosted shell Model: iphone12 Pro Max Length: 16 width 8.2 thickness: 1 Origin: Made in Taiwan The characteristics of carbon fiber, such as high hardness, high strength, light weight, high chemical resistance, high temperature resistance and low thermal expansion, make it very popular in aerospace engineering, civil engineering, military, racing and other competitive sports products. However, compared to similar fibers such as glass fibers or plastic fibers, carbon fibers are quite expensive. Carbon fiber is often combined with other materials to form composite materials. A carbon fiber reinforced polymer (commonly called carbon fiber) that has a very high strength-to-weight ratio when mixed with plastic resin and wound or molded. However, carbon fiber can also be compounded with other materials such as graphite to form a high-temperature carbon-carbon composite material.