Your cage is most likely the mini duna, or the combi one (those are the only two of that style stocked in p@h which is where most people get cages from)
Cages of a similar style are the duna multy (although all distributers seem to have disappeared), the gabber rex (also discontinued, although often pop up on ebay etc) and the zoozone 1 (this needs meshing as the bar spacing is too wide)
[all 70x40]
Or there's the zoozone2, which also needs meshing, but is 100x50, which is an amazing size for a syrian.
Other syrian suitable cages are barred ones,
the following are
80x50 ferplast mary (overpriced first hand, but comes up second hand), imac criceti 16, ferplast criceti 15 (great cage for the entrance, I'd really suggest this cage for access), savic sky metro, savic hamster heaven, savic ruffy 2, and lastly the barney cage from zooplus ((this is good because it could be used for a dwarf after the syrian lived in it, it also has a fair sized door))
And then, there's the Alexander. 100x50 barred cage and I'm pretty sure it can be used for dwarves too
((although it's very pricey))