Main : Filter Papers : Qualitative Analytical Filters : MN 616; medium speed, smooth, for sulphides, lead chromate, calcium oxalate 0.20mm thick, 22s filtration speed, weight 85g per meter square
Filter Papers : Qualitative Analytical Filters : MN 616; medium speed, smooth, for sulphides, lead chromate, calcium oxalate 0.20mm thick, 22s filtration speed, weight 85g per meter square
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