There are many classifications for seemingly ordinary transparent resin discount prescription glasses lenses. Just looking at the glasses, I don't feel any difference, but their materials are completely different, and there is a lot of room for discussion.

The quality of PC plastic can be imagined, and its presence is often seen in jewelry stores and small commodity supermarkets. Some photography studios also serve as styling props. This type of glass has a rough feel, and a hard texture, and is prone to breakage. Some finished products do not even have a lining.

Some brands of plastic steel materials may have signs of airplanes and tableware on their discount prescription glasses legs. The airplane represents whether it is still an aviation material, while the tableware represents whether it meets edible standards. Plastic steel materials are recyclable and environmentally friendly.

I used to have hostility towards plastic steel glasses and always thought they were easy to break. The manufacturer has also educated me that if glasses are made from authentic materials, they are very tough, and soft and won't break. Usually, this situation occurs due to production issues, such as the generation of carbon dots during high-temperature injection molding, and the glasses cracking at the carbon dots due to external forces.

Plastic titanium is a polymer material with memory properties, characterized by super toughness, impact resistance, wear resistance, and low friction coefficient. However, injection molding production can only produce a single color, such as pure black, pure blue, etc. If you want the color of the frame to be more diverse, the manufacturer needs to add spray painting and color plating treatment in the later stage, which will also be more fashionable.