Grey on white Base paper, commonly known as Grey on white Base paper roll，Grey Base paper，white board, powder gray, gray background white, gray copper. The base color is gray and the front is white coated surface, mainly used for printing packaging.Due to the different materials and thickness of the coating surface, the Grey on white Base paper rollis divided into multiple grades. It is called uncoated paper or lightly coated paper. The Grey on white Base paperis measured in tons, and each grade is divided into multiple gram weights, which are divided into 200 grams, 230 grams, 250 grams, 270 grams, 300 grams, 350 grams, 400 grams, and 450 grams. The gram weight here represents per square meter/gram.