fireplace glass made from borosilicate 3.3 float glass heat resistant Hydrolytic Resistant High Chemical Resistant Gas, electric and alcohol fireplace and ovens can use borosilicate float glass to replace ceramic glass.regular thicknesses: 3.3mm,3.8mm, 4.0mm, and 5.0mm.IV. Means of Processing for CustomersCutting Round corner Round edge Surface fine polishing Hole drilling Coating Surface ...