1,PVC free foaming plate extrusion line 2,screw type:double screw 3,PVC control system USAGEThis PVC free foaming board ,skinning foaming extrusion line is composed of special twin-screw extruder ,die and downstream equipment ,Our company can also provide the formula and processing technique.This machine has the features of high output ,stable extrusion ,high foaming ,smooth and wearable surface, ...