A: Visit visa(F visa) is applicable to foreigners who come to DUT for exchanges, visits, inspections and other activities. The validity is normally 90 or 180 days from the date of issuance. The visa holder must enter the country within 90 or 180 days from the date of issuance, or otherwise the visa will be expired. 

A:Single-entry visa for less than 6 months Documents for the applicant to prepare: 

(1) Application form 

(2) Copy of passport’s first page. 

(3) If your invitation is from Country A, but needs to apply for a visa to China in Country B, a proof of long-term residence in Country B (copy or electronic version)is required; 

(4) If your invitation is here to participate in an international conference, a copy of the acceptance to the international conference is required and  your name should be on the list of participants; if your invitation is here to participate in a short-term academic exchange, a brief exchange schedule or plan should be provided."