PVC foam board production line 1,skinning foam or free foam 2,size:1220*2440mm 3,high automatic 4,good quality PVC foam board Extrusion Line Description:This machine adopts the SJMS80/156 conical twin screw extruder,,it also can be equipped with the SJMS92/188 wood-plastic conical twin screw extruder. The calibrating machine, traction machine and plate shearing machine are designed uniquely. The ...