According to the statistics of China Construction Machinery Business Online, the total roller sales volume of the 22 major road roller manufacturers in China is 1001 units in September 2012, among which 237 units are exported. In details, Jiangsu province ranks the first, 49 units. In the 22 manufacturers, XCMG ranks the first with the sales volume of 203 units. In terms of the tonnage, the 20t single drum mechanical roller counts most, 136 units.