I like to expand my job in export good from iran , i had 10 years exp. in import but in export new can any body help me and share exp?

As you have10 years experience in import business. This is not a problem at all I think. You just think reverse. Export is opposite of Import. Now come to the point, if you want to work as exporter, you first get LC from buyer, after follow the LC terms, carry out the shipment of goods and get the payment. Pretty simple.