the high quality precision ... and near-infrared light transmissivity of high borosilicate 3.3 glass has become ... of application in many kinds of floodlight, high power spot light, camera, digital products, ... .Low product main technical indicators: a) specification: wafer from 15 mm to 300 mm ... .05 mm * application: many kinds of floodlight, high power spot light, camera, digital products, scanner, copier ...