... high/tightnes 16mm block board plywood for furniture and decoration :item:the face and back veneer is the first grade okoume/bingtangor ... )the core is poplar/tung and hardwood (MLH)the core density is high and tightness.it is very smooth and strong.bbcc or bbbb ... ,18mm,21mm,35mm,etc.3.Core: Combi, poplar, hardwood,falcara and so on4.Face/Back: Okoume, Bintangor, Pencil Cedar, Meranti or ...