Why these numbers
LANDU PETG Sparkling starts from Bambu's PETG Basic reference; LANDU's published specs are overlaid where available, and everything else stays at Bambu's calibrated default.
Marketing-led; hardened nozzle recommended (general PETG sparkle guidance)
Treat these as a starting point — run a flow-test cube and Bambu's Flow Dynamics calibration after import for the last few percent.