Ẹya Iyapa Ẹkọ, Awọn ila 100

$Educational Diffraction Grating,100 Lines Featured Image$

$Educational Diffraction Grating,100 Lines$

E14.2412

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Awọn ila 100, Iwọn 50 * 50mm, Windows 20 * 35mm

Ti tẹlẹ: Ààrò, 600 Ila

Itele: Stereoscopic Photograph Big, Ṣeto

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