That's an interesting question. I can look up the Russian Standards for level 3, 2, 1, Master of Sport, and Master of Sport International Class, but I'll bet someone else gets to them first as I have no idea where that text is. I seem to remember for superheavyweights the Level 1 is around 295 Kilos, and Master of Sport is around 380, I think? Maybe less than that, but not significantly less. Level 3 is the lowest rank, 2 next up, then 1, etc.
When I started O Lifting back in 1992, they still had qualifying standards for the Olympics; mine was a 360 total as a super. I still have the old USAW Magazine with the chart in the back.