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For those who like sunglasses, the common types of sunglasses and the types of color lens sunglasses are both better choices for people to wear comfortable eye protection, but also more personalized, unconventional. But for most people, the material of sunglasses frame is also more important when choosing sunglasses.
Metal frame is another material of sunglasses. The frame used to make sunglasses is generally alloy. The alloy mainly includes aluminum magnesium, high nickel, nickel alloy and stainless steel. The advantages of alloy frame are not easy to break, good impact resistance and deformation.
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