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Drying Tube, Schwartg U-Shaped With Hollow Glass Stopper and Hose Connection - PLT Scientific Sdn Bhd
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GSC International 402-2 Borosilicate Glass Drying Tube, U-Shaped, 150 mm: Amazon.com: Industrial & Scientific
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Lab Glassware U-shape Drying Tube 15x150mm 20x200mm Absorption Tube Drying Tube Glass U Electrolysis Tube - Flask - AliExpress
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