Substratum,hemi-spherical \<{a=@_k9
Flatness L/2 @633 nm on flat surface or better(specify). (/:m*x*6
Figure irregularity L/10@633nm. &'uP?r9c$
no chips exceeding *Fy6-CC1
Thickness specified at the edge, all types. VLXA6+
Substratum BK7 D20×5 PCX f+ 300 mm /VYT](
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!