... , Birch,etc. CE& ISO certificate Product namepoplar blockboard Face and backOkoume, bintangor,keruing, poplar, birch,red oak,ash tree, polyster,pine,pencil ... cedar, etc Corepine,poplar,fir,hardwood,imported red hardwood, paulownia, falcata, combi etc Thickness4MM ... > No ratten or decay.5> Low formaldehyde emission. Good Quality Blockboard