... -Radioactive, Non-Pollution 2)Non Color Difference, Even Hue 3)100% Brightness, nearly Zero Water Absorption Crystallized Glass Panel Crystallized glass panel ... :1)Non-Radioactive, Non-Pollution2)Non Color Difference, Even Hue3)100% Brightness, nearly Zero Water Absorption4)Anti-Weathering, Acid Resistance, Alkali Resistance ...