JB T 8807 1-2015 Projectors Part 1 Straight slide tray open type (European design)《幻灯机 第1部分 敞开型直排式幻灯片盘(欧洲设计)》.pdf

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JB T 8807 2-2015 Projectors Part 2 Straight slide tray closed type (Japanese design)《幻灯机 第2部分 闭合型直排式幻灯片盘(日本设计)》.pdf

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