20x20mm Ultra Precision Nano Engraving Trasmission Diffraction Grating Teaching

Description

20x20mm Optical Beam Spliter Spectrograph Plane Ultra-high Linear Density Plane Diffraction Grating Holographic Float Glass Grating
Plane Ultra-high Linear Density Diffraction Grating
Size:20x20mm
Thickness 2mm
Material: Float Glass
Scribed line density 300lines/mm  600lines/mm 1000lines /mm 1200lines /mm 1800lines /mm
Working Wavelength: 200nm~10000nm
If you need other  size and high linear Density grating, please feel free to ocntact us.
We can cut the size for you.
Return or Exchange
If you are not satisfied when you receive your item, please return it within 14 days for a replacement or money back.
Please contact me before you return it.
If item is defective in 3 months, We will send you a replacement without extra charger, or offer refund after we receive the defective item.
If item is defective after 3 months, you can still send it back to us.
We will send you a new one after receiving the defective item. But you have to pay the extra shipping fee.
Policies
We are not responsible for any custom duty or import tax.
We will leave POSITIVE FEEDBACK after receiving the payment.Please contact us if you are not satisfied with the item after receive it.
All messages will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your message and we will reply to you as soon as possible.
Serious Buyer Only! Please place bid only if you agree with all the terms.
If you have any problems or concerns whatever with your order or products,please message us and give us a chance to assist you before you leave any feedback.
We believe we can produce a positive outcome to any situation and will work hard to earn your praise.
Shipping
We Ship to Worldwide. Please contact with us if didn't find your country.
Items will be shipped within 1-10 business days on payment received.
Delivery time depends on destination and other factors, it may takes up to 20 business days.