J Jason 新手上路 注册 2002-08-05 消息 36 荣誉分数 0 声望点数 0 2004-06-10 #2 the unique identification number in your nation, examples could be sin in canada and ssn in the us. for applying b1/b2 purpose you can simply leave it blank.
the unique identification number in your nation, examples could be sin in canada and ssn in the us. for applying b1/b2 purpose you can simply leave it blank.
