... 220g-3000g Laminated Grey board 1,Thickness 0.4-4.0 mm grey board, 2, Standard size is 787x1092mm and 889x1194mm Grey board,grey chipboard,grey ... paperboard 1, Weight and size 220gsm-1800gsm is once forming board(1850gsm or more can be laminated) 2, Thickness standard: ... 100g/m2 =0.156mm-0.163mm 3,Feature: Competitive price,good quality,high stiffness,good ...