90% Surface Flatness of Smooth Side (@ 633 nm) <4 Surface Quality of Smooth Side 80 50 Scratch Dig Parallelism <3 arcmin Item # Size Grit T DG05 120 1 2" 120 T DG05 220 1 2" 220" name="description"/>
90% Surface Flatness of Smooth Side (@ 633 nm) <4 Surface Quality of Smooth Side 80 50 Scratch Dig Parallelism <3 arcmin Item # Size Grit T DG05 120 1 2" 120 T DG05 220 1 2" 220" property="og:description"/>
90% Surface Flatness of Smooth Side (@ 633 nm) <4 Surface Quality of Smooth Side 80 50 Scratch Dig Parallelism <3 arcmin Item # Size Grit T DG05 120 1 2" 120 T DG05 220 1 2" 220" name="twitter:description"/>
T-DG05-220 - Ø1/2" Unmounted N-BK7 Ground Glass Diffuser, 220 Grit
– www.tbsmovers.com
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