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PUBLIC MARKS from alamat with tags "engineered glass" & speaker

08 June 2010 09:30

Watch the iPhone 4 video

Engineered Glass All the breakthrough technology in iPhone 4 is situated between two glossy panels of aluminosilicate glass — the same type of glass used in the windshields of helicopters and high-speed trains. Chemically strengthened to be 20 times stiffer and 30 times harder than plastic, the glass is ultradurable and more scratch resistant than ever. It’s also recyclable.

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