Main : Filter Papers : Special Analytical Filters : Phosphate Free Filter Papers : MN 619 g; Round filters, slow filtration, smooth 0.17mm thick, 100s filtration speed, weight 75g per meter square
Filter Papers : Special Analytical Filters : Phosphate Free Filter Papers : MN 619 g; Round filters, slow filtration, smooth 0.17mm thick, 100s filtration speed, weight 75g per meter square
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