الوصف

paperboard
"Cardboard is also known as cardboard. Thick paper sheets made of various pulps and intertwined fibers. The difference between cardboard and paper is usually distinguished by basis weight and thickness. Generally, the basis weight is more than **0g/m² and the thickness is greater than 0.5mm. It is called cardboard (in addition: paper with a thickness greater than 0.1mm is generally called cardboard. Generally, the basis weight less than **0g/m² is considered to be paper, and the basis weight of **0g/m² or more is considered to be cardboard)