A very important reason is that Pizza Hut and Bang John are dine-in, Delta only takeout, which the CEO of Delta has said himself, Chinese people like to dine in the potluck culture, and Delta also rarely advertised domestically, and abroad to the image of the technology company to show people, Delta's boss even said that they are a technology and innovation company, just incidentally sell pizza, of course, the owner of Delta. This is a joke, in addition, there is an important issue of Delta China, is the problem of domestic agents, Delta is the main mode of franchising, that is, each market has its own independent operating company, its stores have the absolute right to manage and operate. They not only get franchise rights from Delta, but also can release franchise rights under their own responsible area, which is why the web page of Delta China shows "China Delta Pizza and American Delta Pizza are independent of each other, there is no affiliation of the company". This is not quite the same as the franchising model of other American fast food chains, including KFC and McDonald's. In addition, because of the business philosophy, the number of stores does not meet the standard and other issues, Delta China has changed hands several times. However, with the rise of takeout culture led by platforms such as HungryMac, Delta China has made a big difference, with the number of stores gradually increasing. To be honest, Delta has been doing a lot of work to improve its taste, which I personally feel is better than Pizza Hut and John's, and there's even news that Delta will buy John's business in China....

(Trump wearing a pizza model on the U.S. version of Saturday Night Live in 2005)