Usage: microscope/ window protector, etc.
Shape: round flat plane /square flat plane
Material: JGS1/ JGS2/ JGS3/ Corning/Nikon
Diameter:φ3.0mm +0.00/-0.05mm Min
Thickness: 0.3mm +0.05/-0.05mmm Min
Surface Finish: 60/40
Specifications can be customized