[Winry was leaning down to pick up the dropped screw when she hears "shoddy craftsmanship." Quickly she sits up straight so that she may properly correct him.]

I'll have you know that automail prosthetics has been a business in my family since my great grandfather's generation! The Rockbell name is known all the way in Rush Valley, and our quality is as good, if not better, than manufactured products!

[And all of that probably means nothing to him.]