Localization Breakthrough and Technological Innovation – The Path of Independent Development of Oil Drilling Rigs Cardan Shaft
For a long time, as a core precision component of oil drilling equipment, the high-end market of oil drilling rigs cardan shaft was once monopolized by transnational enterprises from Europe, the United States, Japan and other countries. Core technologies, key raw materials and manufacturing processes were all restricted by others, which not only led to […]







