... board making machine 1.1220* 2440 2.double side skinning 3.foaming board 4.turnkey service, low price PVC foam board making machinePVC ... physical performance index table:inspect item, unit, result, surface density, 0.5-0.8g/cm3, tensile strength, 12-20MPa, bending strength, 12 ... -extinguishing period is less than 5 seconds. ///// / PVC foam board making machine