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C盖号C-20内径天花板19mm x内径22mm x外径高度28mm（10件）
C CAP-C-20内径19mm x内径22mm x外径高度28mm 28mm（10件）[规格）[规格]号C-20（外径）（外径）上直径23mm x（外直径）下直径26mm x（外径）26mm x（外径）高度28mm x（内径）x（内径）diagient x（内径）dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia dia diometr <br> <br> <br！用于通风和紧密密封，非常适合对测试管，烧瓶和培养瓶进行灭菌，储存和培养。
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