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Trimethylacetic anhydride, 三甲基乙酸酐/5mL/CAS:1538-75-6
'); document.write('¥100

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BT-12910-H2-16(减压器/氢气/YQQ-370/16)
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Acrylyl chloride, 丙烯酰氯/25g/CAS:814-68-6
'); document.write('¥130

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BB-10400-5(激光笔/翻页/红光/汉王)
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