Question about visa valid time

I plan to invite my parents to come and have a visit. Does anyone know how long the visa will be valid? That is, if they are lucky enought to get the visa, how soon should they leave for USA?

Thanks a lot.

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either 3 or 6 months. -小柯- 给 小柯 发送悄悄话 (0 bytes) () 05/18/2004 postreply 15:12:27

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