... tempered smart glass touch screen switch Product Information:1) Thickness:2mm,3mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm,12mm2) Size:according to ... your requirements3) Color:according to RAL and PENTONE4) silk-screen printed at low-temperature with environmental friendly printing ... oil,and sintered at 700C.The print oil is melted with the surface off glass, which won't lose color and ...