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D8 (銀色底)
銀色底長方形，內有紅色雙向箭頭。用途：標示雙向方向。
25 × 40 mm・方形
數量與價格
| 數量（小張） | 未稅單價 | 未稅小計 |
|---|---|---|
| 20 | $15.81 | $316 |
| 40 | $11.19 | $448 |
| 60 | $9.14 | $548 |
| 80 | $7.91 | $633 |
| 100 | $7.07 | $707 |
| 200 | $5.01 | $1,002 |
| 300 | $4.07 | $1,221 |
| 400 | $3.49 | $1,396 |
| 500 | $2.82 | $1,410 |
| 1,000 | $1.45 | $1,450 |
| 1,200 | $1.22 | $1,464 |
| 1,500 | $0.99 | $1,485 |
| 2,000 | $0.75 | $1,500 |