What's the difference between Shandong Binzhou Detention Center and Zhanhua Detention Center?

They are all detention centers, there is no difference, but the location is different.

Further reading: Detention center is a place where criminals and criminal suspects are temporarily detained. The detention center is an organ that detains criminal suspects who have been arrested and detained according to law.

If a prisoner sentenced to fixed-term imprisonment has less than three months left before being handed over for execution, the detention center shall execute it on his behalf.