... board making machine 1.1220* 2440 2.double side skinning 3.foaming board 4.turnkey service, low price PVC foam board making machinePVC ... , 8-15KJ/m2, inspect item, unit, result, elongation at break, 15-20%, Shore Hardness, D type, 45-50 water absorption≥1 ... -extinguishing period is less than 5 seconds. ///// / PVC foam board making machine