北京锦坤科技有限公司
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Pyrex Flat Mirrors chosen for mirrors usually depends on it surface quality, durability, adhesion of coatings, resistance to thermal expansion,etc.
产品指标如下：
Material Pyrex glass or substitute
Dia tolerance (inch) +0, -0.005
Dia tolerance (mm) +0, -0.13
Center Thickness tolerance ±0.010” (±0.25 mm)
Clear Aperture 85% Central Diameter
Parallelism 3 arc min
Surface Accuracy 1/4 wave at 633 nm
Surface Quality 60/40
Coating Protected Silver
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