Why these numbers
Creality PLA (generic family) starts from Bambu's PLA Basic reference; Creality's published specs are overlaid where available, and everything else stays at Bambu's calibrated default.
Reference-table value 200 ±5 / 50 ±5; cooling fan ON; withdrawal 80 mm/s @ 8 mm
Treat these as a starting point — run a flow-test cube and Bambu's Flow Dynamics calibration after import for the last few percent.