The only troubles I have had is Chinese to English translated manuals, PLC descriptions & schematics - take their descriptions with a grain of salt and figure out what they really mean.
If you were going to distribute for them and be the main contact for support in the USA you may want to just redraw, and update descriptions schematics, add to user manuals ect, just so that you cover yourself, and are prepared.
You will be lead support and may not get help from overseas when you need it, or ever.
I do this with our oversea products because ill get our distributors asking for procedures, or technical info that we have never been supplied. So I need to make them or have had made them.
Good partners will supply us with Cad or 3d drawings so we can update and add easily when we do turnkeys with their equipment, others just have the standard PDF drawings that sometimes don't even match the machine.
Hopefully you can find some good distributors across the US, that dont sell a comparable product, so that they can push yours instead of another easier selling name brand..
Sounds like an exciting opportunity. Good luck.