Carrier net is the most commonly used consumable for transmission electron microscopy, and its main function is to carry the tested sample during electron microscopy observation. The most common material currently used is copper mesh, which is widely used due to its simple processing, suitable hardness, and high cost-effectiveness. Therefore, "copper mesh" is often used to refer to "mesh". In practical applications, the copper mesh (carrier mesh) will be covered with a layer of film (see supporting film series products for details).
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