Why these numbers
Elegoo PETG Pro starts from Bambu's PETG Basic reference; Elegoo's published specs are overlaid where available, and everything else stays at Bambu's calibrated default.
Chamber 25–50 °C; tensile X-Y 40 MPa; HDT 73 °C; Vicat 71 °C; impact 78.5 kJ/m²
Treat these as a starting point — run a flow-test cube and Bambu's Flow Dynamics calibration after import for the last few percent.