OPT 149XXX timeline

3.22 we received your case
5.18 we are producing your card and will mail it to you
5.22 we approved your case
5.23 we mailed your card to you

uscis直到邮出卡才给我发邮件，自己某天查到的正在制卡。愿等卡小伙伴早日制卡！