Korean J. Met. Mater. 2022;60(1):76-82. Published online 2021 Dec 10
DOI:
https://doi.org/10.3365/KJMM.2022.60.1.76
Abstract
Smartphones were launched in the market as a product in the early 2000’s. Today, less than 20 years later, the smartphone has become one of the most frequently used devices for human contact. The market is saturated, and competition between products has intensified, and it is not difficult to find.....
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