Who will repair the damaged fire sprinkler?

During the warranty period of the project, the construction unit will repair it. After the warranty period, if a fire maintenance company continues to repair it, they will repair it. If not, find a property to repair it. I am not afraid of trouble. Just buy the same model and pay attention to the color of the glass tube. Change it yourself. It's simple. Wrap some raw material tape and screw it on, just like a faucet. Pay attention to the signal gate valve in this area first, and then repair it after draining.