| 摘要 |
The sleeve is formed from two sheets joined along three edges. One of the sheets is at least partially transparent, and one or more of the sheets has an oval hole (7) in its centre. The top edge (4) of the sleeve has holes (8) punched through, with openings (9) extending from the edge of the hole to the furthest edge. The holes are symmetrically positioned to allow the sleeve to be placed on wire supports for display in retailing. The bottom edge is open (2,3) and has an internal fold to support the disc.
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