在鏡架上
型號代碼由2個字母+4個數字組成（如：RB3183），印記在標準鏡架的左鏡腿內部。
在網站中
型號代碼記錄在每個產品詳細介紹的頁面中。 代碼由2個字母+4個數字組成（如：RB3183），如上圖中所示。
*Bio-acetate is obtained by combining two main components: cellulose acetate (a polymer derived from cotton or wood pulp) and a bio-based plasticizer made from renewable sources (cereals, beet or sugar cane). The bio-based plasticizer is used in substitution for the traditional fossil-based plasticizer, increasing the overall bio-based content1 from renewable sources to 67%2. The percentage of bio-based carbon content indicates how much of the material mixture is obtained from renewable sources versus petrochemical or fossil sources.
1. Calculated using the ASTM D6866 international standard
2. Against the average bio-content of 40% of standard acetate
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