Substratum,hemi-spherical `P9XqWr
Flatness L/2 @633 nm on flat surface or better(specify). Jej` ;I
Figure irregularity L/10@633nm. -e8}Pm
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no chips exceeding F}=aBV|-
Thickness specified at the edge, all types. 5:kH;/U
Substratum BK7 D20×5 PCX f+ 300 mm ndeebXw*
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!