As can be seen from the data released by the pile driver machinery, sales of rotary drilling rigs have increased significantly. There are several factors that have contributed to the increase in sales. First, relative to the past five years, the rotary drilling rig industry, like the entire construction machinery industry, has experienced a certain degree of recovery after a period of serious downturn. This is also a basic phenomenon of development. Everything has its own laws and develops in a classic style, just like the wave-like progress we often say. Therefore, it keeps on developing and continuing to develop to a higher level. Whether it is infrastructure construction or mechanical equipment manufacturing itself, after going through a cycle, it will surely usher in a new round of investment opportunities. The second is that after the baptism of overcapacity, the rotary drilling rig industry has been deeply adjusted in fierce competition, eliminating inferior enterprises, coupled with stable economic growth, and infrastructure construction efforts. The implementation of the PPP model has brought benefits to the rotary drilling rig industry. The third is to take advantage of the “Belt and Road Initiative” to develop overseas markets with outstanding performance. Taking Sany Heavy Machinery, XCMG and Shanhe Intelligent as examples, in the first half of the year, the three companies achieved 158 overseas sales, accounting for 13.4% of the total sales of the three. In particular, Sany Heavy Machinery sold 89 units overseas in the first half of the year, accounting for 17.1% of total sales. The development of overseas markets has made positive contributions to expanding sales. Fourth, the in-depth advancement of the “Made in China 2025” and “Thirteenth Five-Year Plan” has played an active role in promoting the transformation and upgrading of industries and enterprises, improving product competitiveness, and creating world-class Chinese brands.