List of complete documents he must provide to me?

Hello, I am Jean from Philippines.
I have a friend in Beijing, he is an Italian citizen, he is living in Beijing, China - since 1994; he would like invite me to have a vacation in Beijing for a period long 3 months. could you tell m the complete list of the documents he must provide to me. And that me i will apply to your embassy to have the entry visa to visit my Italian friend in beijing and stay in his home for a period of three months.Thank you

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