First, try to work out what your rims are made of. Then you can either buy the most suitable pads or decide that counterfeit carbon wheels aren't worth the risk.
As for how to figure it out, I don't have carbon fibre on my bike, but do have a CF camera tripod. At room temperature aluminium feels much cooler to the touch than carbon, and aluminium sounds more metallic if you tap it, preferably with it suspended or supported by the axle in the car of a bike wheel (i.e. not holding it) . With tyres fitted the metallic ringing will be much reduced, so better to do this before mounting the tyres.
Dobble check that the rims you actually have (and not the ones they claim to be) are meant to be used with brakes. If you can't get confirmation, assume they aren't.
If you really can't work out what they're made of, and really want to test the wheels, aluminium rims are the most forgiving in terms of brake pad material, so try pads meant for carbon. But test very very carefully - off the bike, at walking pace, then a few moderate stops in a safe place (up hill perhaps, certainly not down hill or in traffic). Check for unexpected wear as well as braking performance. I'd only do this under very controlled conditions, one wheel at a time with a known good wheel in the other position, and only as part of a brief demonstration that they're wrong if needed for a return after exhausting all other approaches.