> I'm really struggling to think of a material that is "fairly exclusive" to Apple.
Elithrar's reply hit the nail on the head, but in some cases they do use some fairly exotic materials. For instance, the bead-blasted high-tensile stainless steel antenna array (iPhone 4 & 4s) and artificial sapphire crystal lens coating on the latest iPhone. Both required new manufacturing processes and a considerable amount of hardware to work at scale.
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> I'm really struggling to think of a material that is "fairly exclusive" to Apple.
Elithrar's reply hit the nail on the head, but in some cases they do use some fairly exotic materials. For instance, the bead-blasted high-tensile stainless steel antenna array (iPhone 4 & 4s) and artificial sapphire crystal lens coating on the latest iPhone. Both required new manufacturing processes and a considerable amount of hardware to work at scale.