Aftermarket rotor minimum thickness

[Traumahawk]

From what Ive seen on the Galfers, and the Toby Huang knock offs, they are 5 mm thick new. Does anyone know what the minimum thickness for these rotors?

Thanks

 

[1FK00]

I always thought minimum thickness had more to do with pushing the pistons out too far, in which case, the same as OEM.

If it's based on the structural integrity of the rotor, then it would have to say somewhere on the rotor, maybe?