... 18,20,21,25,30mm core:poplar,fir,paulownia,hardwood. f/b:okoume,bintangor,birch,pine Detailed Product ... for strengthDelivery Lead Time: 20 daysDetailed Product DescriptionSpecifications of Blockboard,furniture board,plywood :Terms of Payment: L/C,T ... Specifications of Blockboard,furniture board,plywood : 1) Face and back: okoume, poplar, birch,bintangor,2) Core: poplar, pine, hardwood, paulownia ...