Diffraction gtating Plane reflection grating optical elemaent Spectroscopic analysis grates 300 lines 12.7x12.7x6mm shine 1000nm

Diffraction gtating Plane reflection grating optical elemaent Spectroscopic analysis grates 300 lines 12.7x12.7x6mm shine 1000nm
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sku: 1005001861330530
$116.60
Shipping from: China
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