Glass Lid Material: float glass. Glass color:clear,white, green, blue, brown etc. Thickness: 4-5mm Edge: SS201 ... drive arbitraryTesting:1 heat test: put glass lid into oven temperature to 200 °, and constant ... particles, 4mm thick glass more than 60, 5mm thick glass than 80, and all particles into ... not turn to yellow, dark on the glass lid , without loosing phenomena and deformation.Function:Our ...