black chalk board

Marteril: 1).Magnetic blackboard surface. easy to write and clear. 2).corrugated boardas the middle layer makes the boardstronger. 3).Plastic back ,zinc back or two sides can be chosen. 4).20mm thick Aluminum frame makes the baord looks nice. Specification: We can make the board size as following: size(cm)pcs/cartonsize(cm)pcs/carton30*206/box, 30/ctn100*80640*306/box, 30/ctn120*80650*356/box, 30/ctn120*90660*456/box,18/ctn120*100670*506/box,18/ctn150*100680*606/box,12/ctn180*90590*606/box,12/ctn180*1005100*606/box,12/ctn200*1005100*706/box,12/ctn200*1204 and other speical specifications you need. Price:Price will be best for you