| Brand | Unbranded |
|---|---|
| Country of Origin | China |
Check the listing for details. Flat Spectrum Holographic Concave Grating D42*10mm 200-800nm Spectrum Width 20mm. Condition: New, Made in China. Listed at 209.62 USD. Thickness 10mm. Engraving line density 200 lines/mm. We will send you a new one after receiving the defective item.