Classification of metal glasses frames: Low-grade glasses frames are mainly made of copper, nickel alloy, and stainless steel, with high cost-effectiveness. The disadvantage is that copper alloy is generally used for low-end reading glasses. The nickel alloy frame is the best among low-end frames, with lightweight, high material strength, and easy reaction with the grease and sweat acid on our faces, ultimately leading to oxidation, corrosion, discoloration, and greenness of the frame. Stainless steel is heavy in weight, can compress the nose bridge, and the material strength is not high, making it easy for welding points to detach. A mid to high-end mirror frame mainly made of titanium alloy, titanium memory metal alloy, and pure titanium.

Real pure titanium frame and β- Titanium is still very expensive, so not all titanium frames on the market use titanium metal. Instead, titanium metal is used on the legs or rings of the mirror, which would be cheaper if titanium alloy was used. 18k gold mirror frame with precious metal as the main display of identity. This type of frame uses gold inlay technology to make the precious metal on the frame, which overall shines brightly. The disadvantage is that it is very expensive and almost as heavy as an alloy frame.

The scientific name of the plate frame is acetate fiber and propionate fiber, which have the advantages of durability, multiple styles and colors, good texture, and fashion. The disadvantage is that it is relatively heavy, and is suitable for those who like fashion and pay attention to clothing matching.