Cosmeticly, not much. As the Type 62 is based off a scaled-down Type 59, which is a Chinese copy of ther T-54. While a Soviet T-62 was one of those uber-premium "will not sell to any foriegner" tanks based on the T-54. In the finer details, the Type-62 is smaller, with smaller gun, and was pretty much gutted of all the nifty electronics that would've allowed it to effectively fire on the move, while the T-62 is quite the opposite, jam-packed with lots of advanced technological goodies, like an autoloader.

And now I wish I instead posted [url=http://www.youtube.com/watch?v=mgmVOuLgFB0]"Why do we Fall?"[/url]