Glass Lid Material: float glass. Glass color:clear,white, green, blue, brown etc. Thickness: ... make by the float glass.Glass color can be clear,white, green, blue, brown etc.Thickness: 4 ... diameter drive arbitraryTesting:1 heat test: put glass lid into oven temperature to 200 °, and constant ... not turn to yellow, dark on the glass lid , without loosing phenomena and deformation.Function:Our new ...