1.core:poplar core ,hardwood core 2.glue:wbp,mr ,e0,e1,e2 glue 3.grade:bb/bb,bb/cc grade 4.sizes ... whole piece poplar,bintangor,keruing ,etc.3.glue:mr/e2/e1/e0/mf/wbp glue.4.grade:aa/bb,bb/bb,bb ... ,inspection and business negotiation!If u need the product ,pls contact us .u are welcome !