The map below shows the plant, in Pulomerak District, Cilegon City, Banten Province. Units 1-7 are on the southwest side of the complex and Unit 8 is on the northeastern side, with a large open-air coal storage area located between. The site of the Banten Serang power station is just to the northeast of Unit 8. Loading map...
Medical Definition of polyamide. : a compound characterized by more than one amide group; especially : a polymer containing a long chain of amides.
But there are plenty of examples of non-biological (i.e. non-polypeptide) polymers made from amino acid monomers. Sodium poly(aspartate) is an important example of a non-polypeptide polyamide. So the answer is polyamides. Polypeptides are a specific type of polyamide and proteins are a specific type of polypeptide.