... 3 fire proof particle board or door cor particle board/chip board1 size 1220*2440mm, 2135x915mm, 1220x2135, 1830x2440, 1830x3000mm thick:34mm, 44mm ,54mm ... finish,texture finish,emboss finish,matte finish4 fire proof particle board or common particle board5 thickness:25mm,34mm,54mm,64mm Packaging ... : 30minutes, 60minutes, 90 minutes, 120 minutes big size particle board chip board flake board fire board