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四氧化三铁磁性纳米微球,基质:Fe3O4,表面基团:-SiOH,粒径:200-300 nm,单位:5mg/ml_纳米粉末和粒子分散液_纳米材料_材料科学_郑州派尼化学试剂厂 - Powered by ECShop