The Champion Mondial AB was a slightly more economical and relaxed deriviate of the Champion Mondial AA frame. It is made out Reynolds 531C tubing.
The Formula frame was the most economical, but still handmade in Dieren.
The Team frame was the TVM/Bison team specific frame.
The 731OS was made with Reynolds 731 tubing and the addition RVS in 731OS-RVS denotes Poppe & Pothoff Noblex stainless steel forkblades and tail. The polished sections are stainless. Very nice.
The 653-RVS uses Reynolds 653 with Noblex stainless steel blades and tail.
Next page shows the cross edition of the Champion Mondial. I know you have two
The Alu-Pro uses welded 7020 aluminium tubing.
The Titanium Pro is the only ATB frame shown. It is out titanium and it is the same frame Raleigh put its decals on. Both companies were part of the Derby Group back then. Not made in Dieren of course, but the others are (on the Alu-Pro I am not sure)