Look like a grease plug not a lamination. Technically it is a "DE" lamination. Kamination is the stiration of metal (or another substance) adhered to another. Laminate flooring per se, is the layering process of manufacture. Lamination of metal as seen on coinage is the mixing of the metal alloys NOT adhereing to one another. This has nothing to do with a part being "attached" or not, it is the process of manufacturing of the stock blanks and plates.