A4双开档案夹 / A3对开展页夹
尺寸说明： 展开后为A3尺寸，收合时为标准A4大小。
产品特色： 採用内部透明圆弧设计，方便文件收纳与取用，同时清晰展示内容，提升实用性与整体质感。
A4 Double-Fold File Folder / A3 Bi-Fold Display Folder
Size Description: Expands to A3 size when opened; folds to standard A4 size when closed.
Product Features: Designed with a transparent inner arc for easy storage and retrieval of documents. The clear layout enhances visibility and accessibility, improving both functionality and overall aesthetic.
