3938| 7
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特氟龍(ptfe)國內誰做的質量最好! |
點評
關于PTFE+銅粉對人體健康的危害,大俠能說詳細一點嗎!我天天接觸這個呢!
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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