Open to Export is a platform designed to help UK based companies interact and ultimately export their products globally, therefore you may not find the assistance you were hoping for here.
You may wish to contact your local Chamber of Commerce in Italy to access local expertise and find answers to your question:
The European Commission Export Helpdesk provides support and guidance to EU exporters on tariffs, requirements, preferential arrangements, quotas and statistics:
A good Italian freight forwarder will also be able to assist you with this matter:
I would personally recommend Kuehne + Nagel as they have offices in Italy & China:
KN: Kuehne and Nagel
Via del Commercio, 2
T: +39 02 908461
F: +39 02 90846287
I hope this helps.