March 21，CCTV《News broadcast》Broadcast a special report《Hunan：Intelligent Manufacturing Opens New Situation and Releases New Kinetic Energy of Industry》，Taking the heavy work of railway construction as a typical case of Hunan's earnest efforts to promote high-quality development，Large diameter slurry balance shield machine independently developed by China Railway Construction Heavy Industry Co., Ltd.“The Sakashima”，It tells about the intelligent achievements of high-level original technology.，Show the continuous development of intelligent manufacturing in Hunan，Accelerate the innovative practice of building an important national advanced manufacturing highland。

In recent years，Railway Construction Heavy Industry gives full play to the role of large-scale equipment manufacturing enterprises in maintaining chain stability, supplementing chain and strengthening chain.，Promote self-reliance and self-improvement in science and technology at a high level，Forge more major technical equipment to fill the gaps in the industry。By promoting the high-quality development of advanced manufacturing industry and upgrading the industrial chain，Promote production in a scientific and orderly manner，Ensure the supply of major equipment，Promote the construction of major projects，Effectively enhance the resilience and safety level of the industrial chain and supply chain。