200 kg is 440 pounds. How did you get 495? That's how rumors/myths get started.
Next it will be she did 515 for a single.
I missed it the first time, but the plate count is 5 per side. For that size plate, the only options are #55/25kg, 45lbs, or #44/20kg. depending on metric or imperial measure.
I'm guessing the plates are aluminum, so figure #18lbs or so per plate.