Substratum,hemi-spherical PVV \@
Flatness L/2 @633 nm on flat surface or better(specify). 9h~>7VeZ)
Figure irregularity L/10@633nm. Z&/;6[
no chips exceeding XlB`Z81j
Thickness specified at the edge, all types. +h[$\_y
Substratum BK7 D20×5 PCX f+ 300 mm JNk
]$ xz
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!