Which is better, copper alloy or titanium steel necklace?

Titanium steel necklace is good, according to Alibaba official website query.

1, titanium steel has strong oxidation resistance, better toughness and stiffness than copper, and its color is bright, while copper alloy has a dull luster. Titanium steel has good corrosion resistance, bright appearance and poor visual effect, so titanium steel is better than copper alloy necklace.

2. Titanium steel has good corrosion resistance and beautiful appearance, which is a kind of special steel harmless to human body. Its model is 3 16L, which has the same luster and texture as titanium, and the price of titanium steel necklace is higher, while copper alloy is not corrosion-resistant and more expensive than titanium steel, so titanium steel is better than copper alloy necklace.