In decorative glass, flat glass has the characteristics of light transmission, sound insulation, good perspective, and has certain heat insulation, cold insulation. Plate glass has high hardness, high compressive strength, wind resistance, rain resistance, scrubbing resistance, acid and alkali corrosion resistance. But the quality is brittle, afraid of strong earthquakes and fear of knocking. Flat glass is mainly used for wooden doors and windows, aluminum alloy doors and windows, indoor partitions, display windows, cabinets, counters, exhibition stands, glass shelves, furniture glass doors and so on. Commonly used thickness is 3, 5, 6mm.