... 3 Thickness:1.0mm~3.0mm. The thickness of the chip paper board we can offer is 0.48, 0.56, 0 ... be even distribution,have no blister pick and fuzz on the surface of board,2.It should be slide and clean ,and ... have no warp in the surface of paper board;3.There should no fissure and waviness in the edge ... obvious. Make sure very pallet should be clean and nice on the shape and looking. chip paper board