Substratum,hemi-spherical LtF,kAIt7v
Flatness L/2 @633 nm on flat surface or better(specify). 4&lv6`G `
Figure irregularity L/10@633nm. d A}-]
no chips exceeding &GO}|W
Thickness specified at the edge, all types. 'T;P;:!\
Substratum BK7 D20×5 PCX f+ 300 mm 79rD7D&g
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!