Blockboard 1.Core: poplar 2. Film: okoume 3. Glue: E1 1. Core: Poplar, Hardwood, Tung or combined core2. Thickness: 15mm, 16mm, 17mm, 18mm, 22mm, 25mm3. Face/back: Okoume, Ash, Bintangor, Oak etc. 4. Size: 1220 x 2440mm, 1250 x 2500mm5. Glue: MR, E1, E26. Grade: AAA, AA