US$ 46.23
Chrome-plated 50mm reading magnifier with a 10cm focal length in alternate-build framing
components
carrying a removable 3-6V 5W heating spring for electrical-method specific-heat investigations
and a 40 mm stoppered charging port for thermal work
and a tensioning pulley
Blue Molecular Model Atom, 2.2cm, 4 Holes, 10-Pack Metal Labware_Clamps & Bossheads Chrome-plated 50mm reading magnifier withQuaternary bonded blue atoms with four holes in a 10 pack at 2. 2cm diameter, sized for building ammonium and related four bonded nitrogen structures.
US$ 46.23
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