19mm blockboard 1.4x8x15/18/19/20mm 2.f/b:keruing,okoume,bintangor..A grade 3.core:pine,poplar,hardwood 4.glue:MR,E2,E1, Product nameblockboardFace and backOkoume, bintangor,keruing, poplar, birch,red oak,ash,polyster,pine,pencilcedar, etccorepine,poplar,fir,hardwood,imported red hardwood, paulownia, falcata, combi etcthickness4MM,6MM,9MM,12MM,15MM,18MM,19MM,,21MM,22MM,24MMsize1220X2440MM, ...