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NBS 25 Test Chart
NBS 25 Chart Lines range from 3 Lines per mm to 20 Lines per mm.
06B01090
£145.71
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Also available in low contrast and negative form, contact us for further information.
B270 1.5mm thick
50mm x 50mm
Vacuum Deposited Chrome on Glass
From 3 lines per mm to 20 lines per mm