Disk, Plano, Parallel, with Center Hole Mirror

P Mirror Type Disk, Plano, Parallel, With Center Hole Form Polished, 2/S Material Glass(Ule, Fs)?. Coating Al , Sio Mount No. Dimensions: Od 12″ Can/A Thk 2″ Radius N/A Fl N/A ***MPN ***OEM Custom ***SKU*** GLS314