Juomalasit värilliset
Juomalasit värilliset

Juomalasit värilliset

We sell only Frances Duralex companies tempered tumblers.
The tempering process is what makes Duralex so tough. Glass that has been heated to around 700°C is suddenly cooled by cold air ventilation.
This treatment creates controlled stress in the glass which improves most of its physical qualities: resistance of mechanical stress (bending, impacts) and thermal shock.
Duralex glass is 2.5 times stronger than annealed glass and is capable of enduring a thermal shock of 130°C.
Virtually unbreakable, if however Duralex tempered glass does break in your hands, there is no risk of injury. It bursts into a multitude of blunt pieces, for your safety. This also applies to tempered glass that is used to make windscreens.

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