hardened glass การใช้

The northern part has an access superstructure made of steel and hardened glass, chosen to be resistant against vandalism.
In the process, it was discovered that dichroic filters, which are color-tuned thin-film filters deposited on hardened glass, were very expensive.
According to the Energy Department, Russia fears that technology could be developed to remove the plutonium from the hardened glass and build new bombs.
However, as an industry, sapphire producers have remained competitive in the face of coating-hardened glass and new ceramic nanomaterials, and still managed to offer high performance and an expanded market.
Generally, ultracompact phones, which use not only custom circuitry and components but also exotic materials like hardened glass and nickel-plated surfaces, are much costlier than more conventional counterparts, their makers say.