Toughened glass is had combat impact strength tall (the vitreous product that handles through steel craft fights pressure impact resistance to be able to raise 5—100 times) , bending strength is great (5 times taller than common plate glass) , thermal stability is good and bright and clean, transparent, but the characteristic such as cut. In encounter when exceeding strong impact to destroy, the fragment submits form of dispersive little grain, without sharp edge, friend says safe glass again.
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