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What grade are Ray-Ban sunglasses?

High-end grade.

According to the query 123 leaderboard, Ray-Ban, a professional sunglasses brand from the United States, belongs to high-end glasses. Ray-ban was founded in the 1930 s, specially customized by the US Air Force, but its history can be traced back to the 1930s in the 18 s. Ray-Ban not only has excellent sunglasses, but also has a strong symbolic significance, and now it has become one of the symbols of American culture.