Thickness (mm):1.0 ;1.5;2.0;3.0;4.0;5.0;6.0;7.0;8.0. Standard size:4400*2200mm,2200*1450mm,2200*1100mm. Product introduce: Our transformer paperboard is made of Canada 100% unbleached sulfate pulp , with performance of high density,high mechanical strength,high electric strength and low compression index.Thickness (mm):1.0 ;1.5;2.0;3.0;4.0;5.0;6.0;7.0;8.0.Standard size:3200*6400mm,4400*2200mm, ...