Will someone who can read chinese please explain these characters ?

[Kjelt]

Hi I would really appreciate if someone who can read chinese explain to me the difference between these two last chinese characters.

Both claim to be Leadshine brand products but one is from Leisai.com and the other from Leisai.net which seems to sell fakes but I am not 100% sure about this 

So if anyone can tell me what the difference is or has more information about this, thanks a lot in advance.

[Kjelt]

I found the second one myself : Lei Sai Technology.
But the first one  is Lei Sai I just can not find it.

[Kjelt]

Thank you Blueskull much appreciated.
Do you perhaps know if these are two different companies?

[Kjelt]

Ok thanks 
They both sell the same productnumbers but inside they are more or less different.
One all markings are removed, the other still has them. Pcbs seem to match but could also be copied.
The only big difference is the pinout of the encoder connector, although they look identical except for the colour they can not be used interchangeable.
The motors with the same typenr are very different.