... Stable,good cooling 2. High speed,co-extrusion 3. High output 4. Durable,hard steel made Stretch ... 20mm to 2000mm, single layer to 2 layers, 3 layers, 5layers and so on.Three layers stretch ... film machine:1) Main parts: one electrical power control box,3 extruders, one die,2 cooling forming rollers, ... side sticky or 2 sides sticky stretch film)3) Heating power: Total power is 130 kw4) Spare parts: All ...