... FACE AND BACK SADED WITH 180GRITE EDGES SMOOTH WITH NO CORE VOIDS TOLERANCE: THICKNESS +/- 0.5MM WIDTH/LENGTH +/- ... 1.5MM Birch face and back,E1/E2Glue,poplar core,C-2 Grade size:1220x2440 1250x2500 thickness:6mm-40mm. SOLID ... COREBIRCH FACE AND BACK ,C-2 GRADEPOPLAR CORE NO STACKED JOINTSCORE PLYS TO BE UNIFORM THICKNESSFINISHED ... plywoodBirch face and back,E1/E2Glue,poplar core,C-2 Grade