far. France began to research concrete pump as early as 1907. The French Feliz Haier had designed and manufactured concrete delivery pump in 1927, and achieved the first successful application. In China, concrete delivery pump had been imported from abroad in 1950s. For example, 252 type concrete pump from Soviet Union had been used in the construction of Wuhan Yangtze River Bridge. Because of the deficient conditions at the time, continuous failures of the machine did not cause the attention of construction unit. From the 1960s to early 1980s, many manufacturers produced all kinds of concrete pumps of various displacement and operating methods through imitation, self-development and combining foreign technology. Some of them even passed the national identification, but no one had been widely used.