... lens by borosilicate glass used as lamp shade,lamp cover,glass shade,light cover,light shade. lamp cover1.Raw material:Borosilicate glass,pyrex ... transparent5Function of glass lens:guide of light direction.6.Application:Lighting system,electronics,industries,e.g.lamp cover,lamp shade,stage lens,led ... light shade,light cover,glass sheet,glass cover,glass shade. lamp cover borosilicate glass good quality