... does not break into sharp shards when it fails. Tempered glass is manufactured through a process of extreme heating and rapid ... cooling, making it harder than normal glass.1>Thickness:3-19MM2>Size:1830*1220mm,2134*1524mm,2000 ... *2250mm,3300*2440mm,3660*2440mm3>Flat tempered, curved toughened glass belong to safety glass. Widely used in high-rise building doors and ...