Substratum,hemi-spherical ]~\sA
Flatness L/2 @633 nm on flat surface or better(specify). [}fv dW
Figure irregularity L/10@633nm. owPm/ F
no chips exceeding T\r@5Xv
Thickness specified at the edge, all types. pD&&l!i&[
Substratum BK7 D20×5 PCX f+ 300 mm )$,"u4
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!