... Face/ Back Bintangor , oak,okoume, pine, pecial ceder Core :Poplar, hardwood, birch, pine 1. Blockboard Feature:1) High bending strength.2 ... requiredFace/Backintangor , oak,okoume, pine, pecial ceder or as requriedCorePoplar, hardwood, birch, pine or as requiredGradeBB/CC, CC/DD, BB/BBTlerance ...