On 26 July 1976 , the day before the Tangshan earthquake , the second unit , DF5 0002 , was completed . The factory was severely damaged in the quake , and over 1,700 employees were killed ; despite this , less than two months later , in September 1976 the second unit left the factory , and production work resumed . Between the end of 1976 and 1979 , a temporary facility was erected at the Tangshan plant , where 25 DF5s were then produced . This early batch of DF5s has since been nicknamed " Earthquake . " By 1981 , the Tangshan plant had produced 32 locomotives of the type
Tangshan earthquake
1976 Tangshan earthquake
China Railway DF5