1:Commercial Plywood Core: poplar core,hardwood core. Face/back:okoume,red meranti,bintangor,agathis,pine , DaBaiMu or birch. Glue: MR, WBP, Melamine ,E1 or E2 Grade:BB/BB.BB/BC,DBB/CC,CC Size: 1220x2440, or 1250x2500,or 3磝7? 2.Blockboard