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PF-050日本Advantec 东洋 PTFE滤纸
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T300A047A东洋AdvantecPTFE滤膜T300A047A
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PF050 47MMADVANTEC日本东洋孔径5umPTFE滤膜
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T100A025Aadvantec孔径1um直径25mm疏水PTFE膜
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PF060/420mmx30m东洋PF060聚四氟乙烯滤纸
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