Both the Type 69 and Type 79 tanks share almost identical hulls and turrets with the older Type 59. The only difference is that the two more recent tank models have been upgraded with better technologies that were either captured or bought from more advanced countries. (Gelbart 1996:17-19) The Chinese Type 59, 69 and 79 tanks can therefore be viewed as part of the same, evolutionary tank family in the same way that the Soviet T-54, -55 and -62 tanks share a common lineage.