Substratum,hemi-spherical ,BGUIu6
Flatness L/2 @633 nm on flat surface or better(specify). BOy&3.h5?
Figure irregularity L/10@633nm. 2_M+o]Z^
no chips exceeding c1y+kvv
Thickness specified at the edge, all types. Ar?ZU ASJ
Substratum BK7 D20×5 PCX f+ 300 mm Z8Vof~
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!