... directions layer by layer. Commercial PlywoodFace/Back Okume , poplar ,bintangor ,pine ,birchCore: Poplar ,hardwood ,poplar and hardwood mixedGrade: BB/BB,BB ... ,E2,melamine, WBP5) face/back: okume , bintangor , poplar, birch, pine, pencil cedar6) veneer grade : BB/CC, BB/BB7) moisture content: 8%-14 ...