Hardware is there any way I can remove these "stains" from this laptop

[Jokey_Carrot]

https://cdn.discordapp.com/attachme...4/658050792133230592/JPEG_20191221_205846.jpg
There are like stains on the bottom of this laptop. They aren't even like scratches just discolouration I've tried soapy water, window cleaner and alcohol and nothing makes a dent in it.
How can I remove them?

 

[JuanMena]

I don't think so.
It might be within the plastic, all the way from the surface throughout the thickness of the case.

 

[gamesquest1]

looks like a scuff to me, can't really remove scuffs as its basically rubbed away the texture from the surface of the laptop.