Differentiated Seam Widths in 50x50mm Interference Diffraction Grid Set
ab 7,94 €
Grid: grid is composed of 90 degree cross lines, 20, 40, 60 lines/MM respectively. The side length of the square is 0.2mm, and the side length of the rectangle is 0.6 0.28mm. 1 x composite grid 1.
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