Duplex board, which is also known as Grey back or White back duplex boards, is a form of paperboard or cardboard with a double-sided grey or white color. Since it is made up of two layers, or plies, it is referred to as duplex board. Duplex board has a shiny coat finish on one side for superior printability. Grey back duplex is available in various sheet size and thickness from 180 GSM to 550 GSM. The attributes of duplex board are rigidity, durability, anti-folding property, smooth and flat finish, moisture resistance and the compatibility with all kinds of printing. We use it to make luxurious durable boxes, such as rigid shoe boxes, clothing boxes, and toy packaging, in the Package Packaging Solution team.