So far, Tianjin Electric Locomotive Co., Ltd. has obtained the Class C5 examination and repair qualification for 7 models of Harmony type electric locomotives, the Class C6 examination and repair qualification for whole part of 4 models of locomotives, and high-level examination and repair qualification for locomotive wheel pairs and axle driving devices. So far, the Company has become the only base able to examine and repair various harmony type electric locomotives in China, equipped with advanced production lines such as combined shop for manufacturing and general assembly, combined shop for steel structure manufacturing and material preparation, and combined shop for assembly and accessory examination and repair, and having 2,775 sets of domestically and internationally advanced equipment such as locomotive dynamic test bench, Swiss bogie integrated test bench and bogie static load test bench, including 1,550 sets of key equipment. The equipment level of the Company is industrially leading.