Who made this 50 trim?

[Chengy]

I'm having trouble finding who made this turbo or what brand it is. All I was told was it is a 50 trim but having a hard time finding the information. If anyone knows who made this turbo or what brand it is, please chime in. I've searched and the closest I got to was a PTE 50 Trim.

Pictures:






Numbers on the back:



Thanks guys.