FastSHIP* Optical flat parallel double side 30mm / 1.18” Flatness 0.07µm λ/10

Description

Hello, my name is Anton, I am new here but I have very big experience in international selling, so please buy with confidence.
By your request I make any additional photos and video!
Satisfaction guaranteed.
For sale lot of 1.
Optical flat parallel double side 30mm / 1.18” Flatness 0.07µm λ/10
New old stock. Perfect condition. Please see actual photos.
Actual photos (ruler in centimeters).
Made in USSR (Top Quality).
Specifications:
Diameter: 30+-1 mm (1.18+-0.039 inch)
Thickness
:
15-16 mm (0.59-0.63 inch). The exact value is indicated on the edge of the plate.
Flatness of both side: 0.07 micrometer = 0.00007 mm (0.0000028 inch) – this is 1/10 wave!
Parallelism:
0.2 micrometer
=
0.0002 mm (0.0000079 inch)
Made from fused Silica Quartz.
Made in USSR (Top Quality).
I have few of these plates so the serial numbers can differ from photos, all the other parameters in the same to all my optical flat-parallel plates.
Delivery times (delays beyond these times are very rare):
EU - 14-24 days
US and Canada - 14-28 days
Rest World - 14-30 days.
Please contact me if you have any questions or any problem occurs.
Payment via PayPal.
Returns accepted.