Graduate student? Generally, graduate students from West University have to send two copies to the province for blind examination. If you haven't read these two copies, the feedback is that you disagree with the defense, that is, ask the tutor to help contact other professors and submit them for review as soon as possible. A few days before the formal defense, the materials agreed by the external auditor should be submitted to the research room. How long can it last depends on the specific situation of your major. The pre-defense time of each major is different.
If it is said that the area after the defense will be marked, this will be carried out later, and the diploma will also be obtained.