Engraved Popular Optical Eyewear Transparent Eyeglasses
Product description
There are also many breakthroughs in the technology and application materials of lens frames. Glasses with memory alloy frames can maintain their shape, and will not break even if they are bent, so that the glasses have a longer life and avoid the inconvenience caused by the broken frames. Adding springs to the hinge of the frame arm also makes the glasses more durable.
In the early stage, the main materials of the frame were metal and tortoiseshell, including stainless steel, titanium metal, platinum, plastic, Monel, nickel alloy and other materials. The mirror frame made of titanium metal is lighter and more corrosion resistant, which can avoid losing luster due to the corrosion of sweat on the metal during long-term wear.
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