The Korea Times : New Substances Upgrade Cell Phones: "New Substances Upgrade Cell Phones
Four substances have been must to make cell phones _ reinforced plastics, liquid crystal display (LCD) monitors, lithium-ion batteries and printed circuit boards (PCB).
This has been the case for the past decade, but things have started to change as the world’s top handset vendors adopt unconventio"
Tuesday, March 20, 2007
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