More data for a DC motor (FIT0441)

Hi
I recently bought this motor https://www.dfrobot.com/product-1364.html (FIT0441) and it works really well but I would like to have access to more data than the one already provided.
In detail I need:
- the intern inductance
- the intern resistance
- the electromotiv force
- the rotor inertia moment
- the torque constant
- the electromotiv constant
- the coefficient of viscous friction

I would be very grateful if someone could give me these data or at least some from a similar motor.
Thanks