Old Huaxi is the copper hot pot you mentioned. I don't know if it is halal. I've tried it several times and it feels good. There is Tianshunyuan, which I know is pure Muslim, but it doesn't seem to be a copper hot pot. Remember the one on Edmonton Road, because it's cheaper, and there's another one in Donglaishun, near the river of Friendship Road. It seems to be a Muslim copper hot pot, but his family is mainly cooking now, and the price is a bit expensive. If you want to eat fish in the northeast, you should go to Longhua Fishing Village in Jiangbei, where the consumption is a bit high and the per capita income exceeds 65.438 million yuan. If you have a bumper harvest near the railway station, the price of farm food can be moderate. Remember to wear more hats, gloves and scarves when you come to Harbin, because it has just snowed and the temperature has dropped. I hope you have a good time!