Where can I recycle second-hand mobile phones in Nankai District of Tianjin?

There are some small shops in Guang Hai Temple. You should look for them yourself, but the prices in the shops are too low now. I suggest that the landlord sell it directly online. For example, I like to recycle this website and automatically set the highest price on the whole network. If I am in Shanghai, I can make cash transactions at home. At present, other cities are mailing, so we don't need to pay the postage. Even if the transaction is unsuccessful, they will pay.