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molecular model with Cotton bud 3d model
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molecular model with Cotton bud 3d model
molecular model with Cotton bud 3d model
molecular model with Cotton bud 3d model

molecular model with Cotton bud

The chemical bond is made up of ready-made Carrefour cotton buds with a diameter of 2.5mm, cotton buds are full of toughness and not easy to break. Among them are hydrogen atom, carbon atom, nitrogen atom and oxygen atom. they can be manufactured by 3D printer.


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molecular model with Cotton bud

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