https://www.mcmaster.com/product/4672A65Made in Mexico...
Generally M-C carries good quality products...
The rolls can be cut into sheets of size you need...
Stuff coming out of Mexico can be high quality, built to a specification. Many international companies setup shop there for cheap labor and access to American markets by rail is good and inexpensive. Can distribute from Mexican ports to other countries as well.
Ton of automobiles being built in Mexico as well...
I've even seen race cars being trailered through Tucson on I-10 coming out of Mexico, Ferraris and other exotics...
Lots of rich Mexicans frequently come up to shop in Tucson and Phoenix...as well as the underbelly being those who buy tons of stuff here, both new and used, and take it back and sell it for 2-3-4 times as much in Mexico. Lots of vehicles end up getting bought and rebuilt and sold in Mexico too... Wrecked and worn out stuff as well as decent used... Not uncommon to see 1 truck flat towing two cars or a car towing another car heading to Mexico.
I would trust that anything McMaster Carr sells is going to be better quality than any cheap stuff from China.