... :MR mnm wbp core:poplar 1.Size: 1220x2440mm 1250x2500mm 2.Thickness: 9mm, 12mm, 15mm, 18mm ,21mm3.Glue: WBP, MR, Melamine 4.Core ... faced plywood1. No warping, no fracture, not out of shape.2. Transference to concrete is set up very easily, so good ... paid for the material, you will feel its value 4*8*12MM film faced plywood /brown/