Need to apply through a travel agencyFirst, submit DS156, DS157, DS158 to a travel agent, together with your passport.
Then US embassy will ask you to go for a interview. That is it!
B-1 visa. You can definately catch it.
another question
thank for your relply. I really appreciate your help.
what is DS156, DS157, DS158 as you mentioned?
Could you recommend me one or two travel agencies?