AI coating, Ag coating, Au coating of various types, ultra-wide spectrum high reflection, not sensitive to incident Angle and polarization state, used under small and medium power, with solid coating, no pinhole and other characteristics. Name Wavelength coverage Reflectivity Base plane parallelism Parallelism Materials Surface quality Effective clear aperture Dimensions Gold.\coated mirror 400-700nm ≥67%Average λ/4 <3' K9 40-20 Outside diameter of 90…