O site da Sherwin-Williams refere-se a “Coil and Extrusion Metal Coatings”.
https://industrial.sherwin-williams.com/na/us/en/coil-extrus...

coil coating: revestimento de bobinas
https://context.reverso.net/traducao/ingles-portugues/Coil c...

“Coil coating involves rollcoating flat metal that will be post-formed after the coating has been applied and cured, and extrusion coating involves spray coating either preformed parts or flat sheets that will normally be used in that state. Following coil coating, the metals (generally steel and aluminum) are typically put through a forming process that bends and draws the coated metal into the appropriate shape for the intended end-use, with little or no cracking of the coating visible to the naked eye. The principal end-use for coil-coated ("pre-coated") metal is the construction industry, for sidewalls and roofing, but coil-coated metal also plays a vital role in the HVAC (heating, ventilating, and air conditioning), entry and garage door, and appliance market segments. Minor applications for coil-coated metal also include the transportation and general metal market segments. End-uses in the latter segment are almost unlimited, from lunch boxes to waste containers, and are generally not tracked by anyone in the industry.” - https://www.researchgate.net/publication/289689209_Coil_and_...

revestimento de bobinas:
http://google.com/search?q="revestimento de bobinas"

revestimento por extrusão:
http://google.com/search?q="revestimento por extrusao"