Transparent glass ceramic does not expand easily. It sustains heat, withstands rapid temperature change and resists to wear and tear. Its surface is smooth and easy to clean with a long life span. It can be utilized as faceplate or panel of various induction cookers. When it is widely used it provides high quality living for general public. Transparent glass ceramic is made of uniformed crystallization and Lithia. The crystal nucleus can prevent expansion. It also provides chemical stability, resist impact damage, and it is transparent. Glass-ceramic is used as faceplate or panel of various electronic furnaces.