For obtaining an invitation letter from our company you have two possibilities:
1) To make a trial order of minimum 1000 EUR. We will deliver the goods, you will receive and clear the custom with your company. With the custom documents you will have much more possibilities to get a business visa for Europe, and for a longer time.
2) To pay a deposit of 500 EUR. We will refund the deposit on the first order you make to us.
We have no other ways, since invitation letters to unknown people we do not make anymore.
Please consider that issuing in invitation letter and obtaining a visa requires long time in your country. During this time market conditions may change. Moreover, if you are not already importing from Italy you will probably not receive the visa. Alternatively we have for you the following suggestions
1) You can place a full order and send SGS for inspection for you
2) You may ask to any person you trust who is living in Europe to come for inspection
3) You may ask to any person you trust who has visa to Europe to come for inspection
If no one of these possibilities are satisfying you I am sorry but I have to inform that we have no other possibilities.