“we want all the pieces you’re using in this machinery to be specifically rated at exactly the conditions and circumstances they will be operating, and no, rating higher/better doesn’t work for that”
“THE THING ON THIS ONE SHEET DOESN’T MATCH WHAT’S ON THE OTHER SHEET BECAUSE WE CAN’T READ, REEEEEE”
Say (by way of analogy) that you were required to document what screws you were going to use building a deck. Say that the technical document specified for use in composite decking or wood, and an install document detailed as an example how to hold down 3/4" pine. Say then that the customer demanded that you expressly provide info on how the screw would hold down 5/8" composite, because it is crazy to assume a screw that holds down 3/4" pine could hold down 5/8" composite without splitting it.