Titanium has low density and high hardness. For high-end custom jewelry and luxurious inlay styles, 18k gold is used for inlay. Although stable, 18k gold has a high density. For luxurious styles, there is a strong sense of gap, especially earrings. However, the density of 18k gold is 3.6 times that of titanium. Lightweight based on high hardness of titanium metal ...

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