Colour:50 Lines 100% brand new and high quality Ultra precision nano engraving PET trasmission diffraction grating for teaching spectral decomposition precision component detection. Craft: ultra precision nano engraving. It is suitable for teaching spectral decomposition, precision component detection, etc. Widely used at laboratory, spectrometer, stage lamp, etc. Specification: Types: 50 lines, 100 lines, 300lines, 600 lines Material: PET 300 / 600 lines Dimensions: 36x38mm/1.42x1.5inch 50 / 100 lines Dimensions: 38x20mm/1.5x0.79inch Color: multiple colors Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x PET Trasmission Grating
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