Large area of the installation of glass, although the CCC logo, but still uncertain whether it is tempered, there is a simple instrument or method does not destroy the glass in the case of glass is to identify it?
Steel is the high-temperature ink through the screen printing on the glass, in the process of glass, high-temperature ink and glass appearance of the blend, so the glass on the steel if the use of hydrofluoric acid scrub will not be cured (even if the use of hydrogen Fluoric acid will also leave a more significant traces).
Tempered glass is slightly worse than the average glass, the simple method: the two glass facing the face of the vertical close together to investigate the two sides of the two long sides of the glass, look at the two long sides of the glass There is no significant gap between, if there is a gap is not necessarily curved, if it is, it is probably steel Attention is face, not face back. This is to be brawny. Or use two exposure X-ray film to see, you look at the side of 70 degrees, you should see the steel after the blue blast, the flatness of the glass than the glass did not significantly lower before the steel The
Look at the side, the glass of the time, will soften, flatness due to the reasons for the deterioration of the roller, face the time, the center of the open space is an oval, so, very significant.
Point of view, in fact, look at the appearance of glass is not a pressure spot. You will see the whole board of the glass irregular deformation.
With polarized sunglasses, to see the colorful markings, no steel probably can not see.
