The bank in your country is not a valid escrow. The only escrow(s) that would work would be chosen from this list :
https://bitcointalk.org/index.php?topic=276897.0 . They offer both parties protection to make sure the deal goes smoothly. If you don't have the funds to operate your business without us paying up-front then nobody will be interested. The way almost everyone operates around here is through those particular escrows and on the terms that funds will not be released to you until the goods have been received.
If you don't have money to purchase a bag of Cray fish, then why are you advertising that you are a company that sells/exports cray fish? This is just further proof of your incompetence.