φ560 Alhais Elliptical Mirror
Comparison between φ560 and φ260 (test mirror)
φ260 Alhays Elliptical Mirror
NC Milling (φ260 Al-Hais Elliptical Mirror)
3D Shape Measurement Request at the National Astronomical Observatory (φ260 Alhase Elliptical Mirror)
Test Polishing (Electronic Polishing Glass Fabrication Joint Production) (φ260 Al-Hais Elliptical Mirror)
