Huitong, Tian Tian and SF. The next sentence of "Shentong Tong Yuan Zhongtong" is "Huitong, Tian Tian and Shunfeng", mainly because there are many domestic express delivery companies, such as Shentong, Tong Yuan, Zhongtong, Huitong, Tian Tian and Shunfeng. These courier companies usually introduce themselves with similar slogans when advertising, and this stalk is a mockery of this way of self-introduction.