Acer 6B.KBCN2.027 is a green upper cover with a Nordic-layout keyboard, listed as a replacement part for the Acer Aspire A315-59 and Acer Aspire AV15-52.
The upper cover and keyboard are identified together under one part number, making this the specific green Nordic-keyboard variant. It is listed for use in the two named Aspire models, so its role is to replace that matching laptop assembly.
The distributor lists this part as new.