一個多世紀前, Charlie Goodyear, 無意中把天然橡膠與硫灑在了一起並且實驗室的溫度條件適合,

來源: 移花接木於 2022-04-12 06:52:12 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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