Borofloat Borosilicate Glass Pyrex Optical Windows - Creator Optics
Borosilicate Glass Windows for Fireplace - China Optical Glass, Borosilcate | Made-in-China.com
3 Hour 1 Hour Rated Fireproof Resistant Borosilicate Windows High Temperature Tempered Curved Pyrex High Temperature Glass - China High Temperature Glass, Pyrex Glass | Made-in-China.com
100mm Diameter x 6.5mm Thickness, Uncoated, BOROFLOAT® Window