Substratum,hemi-spherical @;S)j!m`
Flatness L/2 @633 nm on flat surface or better(specify). Vk76cV
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Figure irregularity L/10@633nm. bp}]'NA
no chips exceeding t+0/$
Thickness specified at the edge, all types. yK_$d0ZGE~
Substratum BK7 D20×5 PCX f+ 300 mm [DtMT6F3
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!