there is a circuit for a fryer / range, and it is on the same ring MCB as the cooker.
Do you really mean "ring" MCB, or is it just a 32A MCB feeding both the fryer and the domestic cooker on radial circuits?
I still don't like even the latter. Maybe the chances of the domestic cooker being in use at the same time as the fryer are small, but each should really have its own dedicated circuit nevertheless.
