The pair is a special food of Chifeng, which is crispy and soft inside, and has a flavor. The bacon in the clip is also very particular about it. It is featured in a dozen flavors, flavored and not greasy. Datang won the gold medal in the Malaysian International Food Health Competition, the China-Russia International Beauty Special Gold Award, and the Chinese title. As a special snack of more than 100 years of history in Donghe District of Baotou City, tea soup is listed in the intangible cultural heritage of Baotou City.

The inventors of the pair were Su Wenyu and Su Debiao and his son. Around 1900, the chef of the Imperial Palace of the Qing Dynasty often went to the "Yushenglou" meat shop in Sanlihe to buy meat, and passed the bacon technology of the Imperial Palace to the butcher. At the time, 15-year-old Su Debiao was working. The “Yushenglou” meat shop apprentice also mastered the craft of bacon. In 1917, Su Wenyu integrated the process of “Hada fire” and “steamed meat”, and invented the fork fire with the soup bacon technology learned by his son. Later, it was renamed as “Pair of Clips” and “Revival Long Pairs” was established in Chifengtoudao Street. This kind of biscuit and ordinary sesame scones are different from the noodles and the manufacturing process. They are also placed on a kind of iron tweezers after being taken out from the furnace, and then re-baked again in a small fire. The sesame cake is crispy and soft inside, and has a flavor. The bacon in the clip is also very particular about it. It is featured in a dozen flavors, flavored and not greasy. The outer surface of the clip is golden, with distinct layers, with northern characteristics, crispy crisp, tender meat, thin and not firewood, fat but not greasy; there is also a hint of tea in the south, refreshing, qi and spleen. The Chifeng pair is called "China's meat burger."