Substratum,hemi-spherical <<W.x)#:
Flatness L/2 @633 nm on flat surface or better(specify). SILvqm
Figure irregularity L/10@633nm. /_VRO9R\V
no chips exceeding RaM#@D7
Thickness specified at the edge, all types. {xBjEhQm
Substratum BK7 D20×5 PCX f+ 300 mm pw<q?q%
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!