Substratum,hemi-spherical = #`FXO1C
Flatness L/2 @633 nm on flat surface or better(specify).
t6tqv
Figure irregularity L/10@633nm. .]"
o-(gB
no chips exceeding /a,q4tD@
Thickness specified at the edge, all types. TZ/u"' ZS
Substratum BK7 D20×5 PCX f+ 300 mm &CS= *)>$
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!