The Hansteel medium and heavy plate EPC project was constructed by MCC CISDI, and digital applications were carried out throughout the entire life cycle of design, construction and operation and maintenance. Digital design is used in the design phase to precisely control the schedule, quality and workload. In the construction phase, the "Livery" platform of MCC CISDI is used to achieve refined construction management, helping the project to set a record for the fastest construction of similar production lines. In the operation and maintenance phase, digital empowerment is used to create an industry-leading digital twin production line.