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Millipore聚偏二氟乙烯 PVDF滤膜 0.22um GVWP04700/09050/14250
密理博聚偏二氟乙烯膜GVWP04700
默克密理博PVDF 022UM 142MM 50PK圆片微孔滤膜GVWP14250
MILLPORE GVWP14250 142MM 022UM密理博微孔滤膜PVDF滤膜
GVWP14250密理博PVDF 022UM直径142MM 50PK超滤膜微孔滤膜
聚偏二氟乙烯PVDF过滤膜
millipore聚偏乙烯滤膜