Al2O3 sapphire glass optical lens for watch glass,A-axis round Sapphire rough lens for watch protective screem glass 1. what is sapphire glass? Sapphire is one of the hardest materials, and possesses very good ... Read More
Al2O3 sapphire glass lens for window ,sapphire led substrates . optical glass lens by sapphire,sapphie crystal glass 1. Sapphire Feature + can be customized as design size,shape,bevel chamfer,tolerance,artwork; ... Read More