What should I do if the second district of Tiantongyuan West is very noisy?

Go to the local public security organ to complain and ask for handling. The Law of People's Republic of China (PRC) on the Prevention and Control of Environmental Noise Pollution has laws to follow. Moreover, regular companies need to be registered before they can operate. I don't know the registration conditions in this regard. You can check it. If it does not meet the requirements, you can complain to the industrial and commercial department.