Can Yibin county detention center in Sichuan province visit the prison?

Yibin county detention center in Sichuan province can't visit prison. According to relevant public information, pending prisoners in the detention center are not allowed to visit the prison, can meet with lawyers, are not allowed to meet anyone, are detained in criminal detention, are not allowed to visit their families, and have important civil acts. With the consent of the detention center, they can hand over documents and convey information.