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详情介绍：
Type SEMF3
Uses an alpha-numeric index, allowing up to 25 predetermined specimens to be fixed and then located in a SEM. 25 cells are identified by reference to their alpha-numeric position. The large asymmetric cut-out feature in the rim enables the right view to be easily obtained when placing on a SEM stub.
| Overall Diameter: | 10 mm |
| Overall Thickness: | ~50 µm |
| Material: | Copper, Nickel or Gold |
Four quadrant markers tapered towards center. 100 radial sectors.