... composition core 3) for concrete construction uses, with smooth surfac Plywood at size 4ft*8ft(1220*2440mm) E2 GradeOkoume Face & Back ... , 3mm, 3.5mm, 4mm, 5mm, 6mm, 9mm, 12mm, 15mm, 18mm, 21mm, 25mm. Features:1) WBP Glue, MR Glue2) poplar or ... the working life of concrete6) Environmental friendly, lowest formaldehyde.. okoume,birch,bintangor,pine,red hardwood,pencil cedar,meranti...core:poplar,hardwood ...