3.3 borosilicate float glass is produced by the technology of float glass making. Main ingredients of this float glass are sodium oxide（Na2O）, boron oxide（B2O3), silicon dioxide（SiO2）.In those ingredients, boron and silicon have high content. For example, boron: 12.5~13.5%,silicon 78~80%.In this case, this special glass are called borosilicate float glass. The feature of the glass is that it has small thermal expansion coefficient,
（1）Home application（e.g. internal panels in ovens and panels in microwave oven, induction heater, fireplace, space heating appliances etc.） （2）Environmental project and Chemical project （e.g. underlayer of repellency） （3）Lighting industry (e.g. cover panels for high power floodlights and projectors) （4）Solar electrical energy generation（e.g. top of solar battery） （5）Accuracy apparatus（e.g. optically flat filter） （6）Semiconductor technology（e.g. wafer） （7）Medical Technology biological engineering （8）Protection(e.g. bullet-resisting glass、cover of high grade watch） （9）Advance building flameproof glass
