Which prison will Zhoushan be sentenced to?

You can't answer this question at all, because you were detained in the local detention center (affiliated to the local public security bureau) before the examination and approval, and if the sentence after the trial exceeds one year, it may be served in 12 prisons in the province (affiliated to the Justice Department prison). Huzhou, Hangzhou Qiaosi, Jinhua and Quzhou are more likely to have prisons, and other places such as Ningbo are also possible. I suggest you ask the family members or defense lawyers of the sentenced person, and they will usually be told.