According to the statistics of China Construction Machinery Business Online, the grader sales volume of the major 12 grader manufacturers in China totals 459 units in May 2012, among which, 219 units are exported. In details, the grader of 180-199HP counts most, 203 units. In the 12 manufacturers, XCMG Road Construction Machinery ranks the first with 162 units. In terms of the region, Jiangsu province ranks first, 24 units.