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Maximum stirring quantity of H2O at 3L
Undercut tone holes
a glass capillary tube with a millimeter scale
Compound Friction Rod
1pcs Double Concave Lens | 50mm Diameter and 100mm Focal Length Glucometer Maximum stirring quantity of H2OHigh Quality Glass: Made from durable and high quality glass, this Double Concave Lens is designed to last and provide accurate and reliable results in a variety of scientific applications. 50mm Diameter: With a diameter of 50mm, this lens is perfect for use in a range of optical experiments, including refraction, reflection, and more. 100mm Focal: Featuring a 100mm focal, this lens is an ideal tool for creating focused images and light beams.
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