In 2022, the brand of full casing drilling rigs ranked first in Shanggong, second in Zhonglian, third in Taixin, fourth in Dunan, fifth in Heshan Intelligent, sixth in CRRC, and seventh in Sany. Shanggong Company is mainly engaged in TRD series engineering machinery, static ground drilling series engineering drilling rigs, full-rotation casing drilling rigs, DCM series offshore and onshore processing systems, two-wheel mixing drilling rigs, multi-functional casing auger drilling rigs, SMJ crawler drilling rigs, Design of multi-axis underground diaphragm wall series drilling rigs, fully hydraulic crawler drilling rigs, traveling series pile driving frames, pipe twisting machines, cylinder series diesel hammers, electric vibration hammers, hydraulic series pile driving hammers, manufacturing of underground foundation construction machinery products such as aerial work platforms and sales, which can provide mechanical equipment and overall solutions for the foundation construction of super-large projects such as highways, high-rise buildings, bridges, subways, airports, docks, and power stations. Characteristics of Domestic Drilling Rig Manufacturers Zoomlion was established in 1992 and is mainly engaged in the manufacturing of ramp and major high-tech equipment required for infrastructure construction such as construction engineering, energy engineering, environmental engineering, and transportation engineering. It is a global enterprise that is constantly innovating. Zoomlion has been established for 20 years, with an average annual compound growth rate of more than 65, making it the fastest growing construction machinery company in the world. The company produces 86 product series in 13 categories with completely independent intellectual property rights. With nearly 800 leading products, it is the construction machinery company with the most complete product chain in the world. Its two major business sectors, concrete machinery and hoisting machinery, rank among the top two in the world. Jiangsu Taixin Machinery Technology Co., Ltd. is a professional piling enterprise focusing on the manufacturing of ramp and small and medium-sized piling machinery. It is a governing unit of the Piling Branch of the China Construction Machinery Industry Association. In 2015, it was recognized as a high-tech enterprise and passed ISO9001 quality system certification and Jiangsu private technology enterprise certification. Taixin Machinery has registered more than 40 items. All products have passed the European Union's CE certification. Taixin Machinery's products include integrated small rotary drilling rigs, Carter chassis series medium-sized rotary drilling rigs, modular rotary drilling rigs, fully hydraulic pile drivers and other piling machinery products. Taixin brand KR series small and medium-sized rotary drilling rigs and KP series fully hydraulic pile drivers have become the leading professional piling brands in China. They have been rated as the top ten brands of piling products by China Pavement Machinery Network for three consecutive years. Xuzhou Dunan Heavy Industry Machinery Manufacturing Co., Ltd. - Xuzhou Dunan Construction Engineering Machinery Manufacturing Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, sales, and service of special engineering machinery and helping customers with construction management. The main products include DTR series full-pipe full-rotation drilling rigs and foundation pit steel support axial force intelligent compensation systems. Relying on technological innovation, using lean manufacturing as a means, adhering to the customer-centered, technology-leading business philosophy, and relying on strong technological R&D and manufacturing capabilities, the company has developed and manufactured a full range of fully managed products with completely independent intellectual property rights that have reached the international leading level. Full-rotary drilling rigs have obtained more than 70 nationally authorized achievements, including 5 inventions. At the same time, as the main drafting unit, the company compiled the domestic full-pipe drilling rig industry standard, leading the domestic full-pipe drilling rig industry to a new level. Pioneering and innovative is the core of Heshan's development. Compared with market-following innovation, pioneer innovation is a more complex and difficult full-process product research and development model. It is a higher level of independent innovation and is currently the main way to achieve the goal of moving from China-created to China-created. Heshan has wisdom and foresight to establish a pioneering innovation model and system, which has brought differentiated development opportunities to the enterprise. Heshan regards innovation as a gene rooted in the life of the enterprise, forming a product group with distinctive characteristics and significant differentiation of Heshan. . The company has successfully developed more than 200 products with independent intellectual property rights and core competitiveness in more than ten fields such as underground engineering equipment, full range of excavators, modern rock drilling equipment, special equipment, mining equipment, lifting machinery, hydraulic components, and general aviation equipment. The company's high-end equipment products are exported in batches to more than 100 countries and regions around the world. The SUNWARD trademark has been registered in dozens of countries around the world. Beijing CSR Times Locomotive and Rolling Stock Machinery Co., Ltd. is affiliated to China CSR Zhuzhou Electric Locomotive Research Institute Co., Ltd. and is located in Changping District, Beijing. As the operating entity of Beijing CSR Zhuzhou Institute, it is an important undertaking unit for CSR to achieve the strategic goal of extending the core technology of rail transit equipment. China South Locomotive & Rolling Stock Corporation will rely on CSR Beijing Times to vigorously develop the construction machinery industry.

From 2004 to the present, CSR Jinghua Times has been based on the five major industrial directions of piling machinery, crawler cranes, complete sets of concrete equipment, brake series products, and special engineering machinery, focusing on technological leadership, market expansion, capital operation, professional manufacturing, professional management, and team culture. With the six major work themes, the company has achieved provincial-level coverage of its marketing and after-sales service network, transformed from a regional supplier mainly in North China to a mainstream supplier nationwide, and established after-sales services corresponding to the ten major marketing regions. outlets and established the first 4S store in Xinjiang. Products are exported to Singapore, Dubai, Russia and other places. With the establishment of the construction machinery assembly plant, the company has realized the transformation from a small-batch production model to a large-scale, batch-based industrial manufacturing model. CSR Beijing Times' professional and large-scale development of construction machinery has gained good technology accumulation. Sany Group Co., Ltd. was established in 1989. Since its establishment, SANY has always adhered to the vision of building a first-class enterprise, cultivating first-class talents, and making first-class contributions, and has created the well-known SANY brand. Sany Group's main business is engineering-themed equipment manufacturing. Its leading products are concrete machinery, excavating machinery, hoisting machinery, road construction machinery, piling machinery, wind power equipment, port machinery, petroleum equipment, coal equipment and other products. These include excavation machinery. Adhering to the mission of changing the world with quality, SANY invests 5-7% of its sales revenue into R&D every year, striving to upgrade its products to world-class levels. At present, the group has scientific research institutions such as a national enterprise technology center and a national postdoctoral research center. With its innovative strength, SANY has won the National Science and Technology Progress Award three times and the National Technological Invention Award twice, making it the enterprise that has won the country's highest honor in the construction machinery industry since the founding of the People's Republic of China. As of December 31, 2015, SANY had purchased nearly 7,000 items from across the country.