... board making machine 1.1220* 2440 2.double side skinning 3.foaming board 4.turnkey service, low price PVC foam board making machinePVC ... . PVC free foamed board physical performance index table:inspect item, unit, result, surface density, 0.5-0.8g/cm3, tensile strength ... , 8-15KJ/m2, inspect item, unit, result, elongation at break, 15-20%, Shore Hardness, D type, 45-50 water absorption≥1.5 ...