Toughened glass is glass with compressive stress on its surface. The difference between tempered glass and ordinary glass is that it has very high strength and very high thermal stability.
And tempered glass can see colored stripes through the polarizer and the edge of the glass. And when the glass is damaged by external force, the fragments will turn into small honeycomb-like particles that are difficult to cause serious harm to the human body.
In the late 1950s, the British Pilkington Glass Company announced to the world the successful development of the float forming process for flat glass. This was a revolution in the original grooved top forming process. For a time, waves of float fever converged into "float madness" and swept the world. Many countries in the world spent huge sums of money to acquire Pilkington's patents, but Pilkington initiated a technological blockade against China.
The technological blockade in the West has made us realize that the development and production of float glass in China must follow the path of self-reliance and independent innovation.
In May 1971, the former Ministry of Building Materials Industry decided to conduct float process industrial trials in Luobo. Glass experts from all over the country gathered in Luobo, and more than a thousand employees of Luobo participated in the war.