... ,18,19,20mm 3)Core: poplar, hardwood,paulownia 4)Glue:MR,WBP Specifications:Blockboard 1)Size:1220*2440 or as request ... : 15,18,19,20mm 3)Core: poplar, hardwood,paulownia4)Glue:MR,WBP5)Face and back:keruing, red oak, beech, okoume, bintangor ...