產(chǎn)品展示
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BK-7窗片
2019/08/15
| Material Borosilicate Crown Glass Flatness Lambda at 633 nm per inch Scratch-Dig 40 - 20 Size tolerance ± 0.1 mm Parallelism less than 3 arc minutes Clear aperture 90 % Bevels (0.2-0.5)mm x 45° | |
| Diameter, mmThickness, mmPart Number12.72W9-0525.43W9-1038.14W9-1550.86W9-2076.28W9-30101.612W9-40Sizes up to 400 mm diameter x 60 mm thicknessare available by special order. | |