With the customer demand as the center, we pay attention to the reliability & availability of gas turbines during operation and the planning and prevention of maintenance and repair, and combine big data statistics with expert diagnosis to provide customers with tailored full-life cycle services including supervision of installation & commissioning, spare parts supply, routine maintenance, upgrading, remote health management, resident on-site service, LTSA (Long term service agreement)/LTPM (Long term parts management) service until the retirement of gas turbines.