Practical Optical Research Kit with Five Different Diffraction Gratings
18,18 €
The side length of the square is 0.2mm, and the side length of the rectangle is 0.6 0.28mm. Single seam: seam width is 0.05, 0.1, 0.2m, three types. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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