二. Corrugated Board 4. Fiberboard grades Weight; Thickness; Material The most commonly used Grammage: the mass in corrugating medium weights grams per square meter Grammage/g Basis weight/b 127 26 Basis weight: the weight in pounds per 1,000 square feet 147 30 C abbreviated Ib/MSF). 161 33 195 40 Meterial Linerboard ---natural kraft: Solid bleached white kraft: mottled white; Oyserboard Linerboard with a whiter surface provide better graphics Recycled or secondary fiber ---producing both two components Recycled board ---smoother surface finish low CoF, excellent printing surface二. Corrugated Board 4 . Fiberboard Grades : Weight ; Thickness ; Material Grammage: the mass in grams per square meter. Basis weight: the weight in pounds per 1,000 square feet ( abbreviated lb/MSF). The most commonly used corrugating medium weights Grammage/g Basis Weight/b 127 26 147 30 161 33 195 40 Meterial : • Linerboard --- natural kraft ;Solid bleached white kraft ; Mottled white ; Oyserboard Linerboard with a whiter surface provide better graphics. • Recycled or secondary fiber ---producing both two components Recycled board ---smoother surface finish ;low CoF; excellent printing surface