Maximum rim air pressure

[docsouce]

What is the maximum air pressure on the factory steel 16 inch rims on a 2016 Ford E350 chassis uses on my 22ft Class C?
I know I saw it mentioned here before but I can't find it. Internet didn't help either.

[ksg5000]

Info s/b be stamped on the inside rim.

[navegator]

80 psi

navegator