The craft is joint: designers, engineers, and producers iterate on prototypes, refining joints, coatings

https://noon-wiki.win/index.php/Roofing_Vents_with_Staying_Power:_Copper%27s_Century_of_Quiet_Performance

The craft is joint: designers, designers, and makers iterate on models, refining joints, finishes, and tolerances up until classy concepts become buildable steel.