Why these numbers
JAYO PLA Carbon Fiber starts from Bambu's PLA-CF reference; JAYO's published specs are overlaid where available, and everything else stays at Bambu's calibrated default.
TDS: density 1.20; modulus 3530 MPa; hardened nozzle required. PDF title says "PLA Marble" — appears to be a JAYO documentation bug; printing parameters are CF-typical
Treat these as a starting point — run a flow-test cube and Bambu's Flow Dynamics calibration after import for the last few percent.