In terms of notebook materials, the first one is titanium alloy, which is strong, light and has good heat dissipation. This material has only been used by some ultra-high-end models of APPLE and IBM's THINKPAD.

The second place is magnesium-aluminum alloy. This is slightly heavier than titanium alloy, still strong, and has first-class heat dissipation. Then comes carbon fiber. There are several types of carbon fiber. For example, some models of THINKPAD will incorporate carbon fiber. Some metals have better thermal conductivity. Carbon fiber has high hardness, but not enough toughness. As a result, it is easy to crack after being hit hard, and the plasticity is not strong. For example, ASUS and THINKPAD mostly use this material, so some of their models This is the reason why their appearance and structure are relatively simple and square. Generally speaking, this material is better than engineering plastics and is generally used in mid-to-high-end models.