... , green, grey 4.Edge:Flat,grind,polished ItemTempered glass or Toughened glassThickness3mm, 3.5mm, 3.8mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 15mmSize ... wall should be controlled when it is tempering.3) The stress of half tempered glass can not be to big to aviod the ... broken caused by the shock of the wind loading 6mm Clear Tempered glass