Specification：
Material:Coler Glass
Size:2-500mm
Size Tolerance:+0/-0.01~+0/-0.1mm
Thickness Tolerance:±0.01~±0.1mm
Irregularity (P-V) @ 632.8nm:λ/4~λ@632.8nm
Surface Quality:20/10~80/50
parallelism:<30”~3'
Clear Aperture:>90%
Bevel:Protective bevel as needed
Coating:Uncoated,AR,BBAR
