Pressboard,Transformer Insulation Paper Board,Precompressed Press Board,Transformer Pressboard,Laminated Pressboard,Electrical Insulation Paper board,Insulation Cardboard.From 100% Unbleached sulphate wood pulp.Cardboard makes which on the intermittent type board machine.used in transformer Excellent dielectric properties, good heat resistance,high mechanical properties. Thickness 0.5,0.8,1.0,1.5,2.0,2.5,3.0,4.0mm.Size:1000mm*2000mm,2000mm*4000mm,1600*3200mm,3200mm*4200mm,or according the customer s demand. through ISO 9001.UL,SGS, RoHS certification .competitive quote