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กระดาษกรอง (Filter paper) เบอร์ 1 (F1) 125mm, pore 10μm - อุปกรณ์วิทยาศาสตร์, เครื่องเเก้ววิทยาศาสตร์ : Inspired by LnwShop.com
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Whatman 1002-047 Quantitative Filter Paper Circles, 8 Micron, 21 s/100mL/sq inch Flow Rate, Grade 2, 47mm Diameter (Pack of 100): Science Lab Quantitative Filter Paper: Amazon.com: Industrial & Scientific
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Whatman 1001-110 Qualitative Filter Papers; 11.0 cm dia; pore size, 11 µ; 100/box from Cole-Parmer India
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