How about trenchless horizontal directional drilling rig?

Abroad: Auger Company of the United States is the pioneer of trenchless horizontal directional drilling and the largest manufacturer of horizontal directional drilling rig in the world. At present, many domestic trenchless engineering contractors have auger rigs. For example, the state-owned PetroChina Pipeline Bureau, Sichuan Youjian, Dagang Youjian and so on. ; Private enterprises such as Taian Dai Feng, Tianjin Jianhai, Fujian Chen Dong, Shandong Dongying, Shanxi Zhongtong, etc.

Domestic: Shanghai Gold, Beijing Dewei Tuxingsun, Nanjing Tommy Tam, Lianyungang Huanghai Machinery, Guangxi Huali Heavy Industry, Hunan Yipin Heavy Machinery. Domestic enterprises can't compare with foreign enterprises in quality.