... high temperature Borofloat 3.31) Materila : Borosilicate glass 3.3,Borofloat 3.3,Pyrex 3.3 2) Techniques for Borofloat 3.3: by Molding or ... dirts,4) Application of Borofloat 3.3: Light System,Electronics 5) Purpose of Borofloat 3.3 :Including square lens,film ... lens,spot lens,round lens, flat lens ,front lens etc. Borofloat 3.3 ...