Tofu nao is also called Lao Doufu in some places in Tianjin. There is not much difference between the barbecue and barbecue we usually talk about. However, in the northwest barbecue, the meat is skewered on metal skewers and skewered on the charcoal stove. In the barbecue, the meat is skewered on bamboo skewers and fried in a pan.

In Tianjin and Beijing, it is called mutton soup. In the northwest, it is called haggis and cold skin. This name is common in many places, but in Xi'an and Xining, it is more popular.

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