Substratum,hemi-spherical HrHtA]
Flatness L/2 @633 nm on flat surface or better(specify). t<MO~_`!
Figure irregularity L/10@633nm. _J>!K'Dz
no chips exceeding =*KY)X
Thickness specified at the edge, all types. "]U_o<V
Substratum BK7 D20×5 PCX f+ 300 mm '?d5L+9
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!