2019 13.3" MBP - decoding Z0WS/Z0WU and Z0WQ/Z0WR?

[miskuu]

Hi,
does anyone have any idea what the following codes mean for the 2019 13.3" MBP:

• Z0WS/Z0WU
• Z0WQ/Z0WR

I found out online that most likely (not 100% sure):

• Z0WS/Z0WU - refers to silver
• Z0WQ/Z0WR - refers to space gray

What are differences between models Z0WS and Z0WU as well as Z0WQ and Z0WR?