Material of optical eyeglass frame

There are many types of materials for optical eyeglass frames, and common materials include:

Metal materials: such as steel, aluminum, nickel silver, etc.

Plastic materials: such as cellulose acetate, nylon, etc.

Alloy materials: such as titanium alloy, magnesium aluminum alloy, etc.

Wood material: such as oak, beech, etc.

Natural horn materials: such as buffalo horn, crystal, agate, etc.