
Plastic frames are often selected for the advantages of strong function and lightweight. They usually are the combination with other materials. Most of plastic frame combine nylon with plastic together and the majority of manufacturers has switched their goals to nylons or nylon-based plastic, because they are more favorable and utility than other types of plastic. Consumers take this kind of plastic as their prior choice, especially people who are interested in sports as the frame are resistant and quite flexible.
Metal frames are considered to be the classic and previous material among others and also widely are made by manufactures for the good prices in the market. They are usually stable and hard enough. Titanium frames are the new frames offered by some manufactures. Sometimes, they are named as the silver-gray metal which have good functions of lightweight, durability, and malleability as well as corrosion resistance. Actually, they can be made with different colors. The grey is the typical tone of titanium.
There are also other materials that can be made for eyeglasses, such as beryllium, stainless steel, wood and amongst others. No matter what materials you choose, they should comply with your applications.
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