| 摘要 |
A building material includes a base material, a first mirror coating formed on the surface of the base material, a second mirror coating formed on the surface of the first mirror coating, wherein the first mirror coating 5 contains a filler and a first resin material, the pencil hardness of the first mirror coating is in the range of about 3H to about 8H, the second mirror coating contains at least a second resin material, and the pencil hardness of the second mirror coating is in the range of about B to about 2H. |
