Carbon fiber is a kind of special fiber consisted of carbon,  which varies according to carbon content that  is usually over 90wt%. Carbon fiber has the same  feature as general carbon , like high temperature resistance, rub-off resistance, conduction of electricity, conduction of heat and corrosion resistance. On the other hand, it is different from general carbon that it has unique qualities that it is so soft that can be processed into all kinds of fabric. And above all,. Its crystallite has super options along fiber axle , which makes it have high extensile strength resistance and Yang modeling content along the fiber axle. The specific weight of carbon fiber being small, it has high specific strength and specific modeling content. It can be made into composite material and be the omnipotent in the world of material.