... co-extrusion 3.co-extrusion mold 4.film bubble contor systems Film Blowing Machine Main application This production line is used ... system, extruding system, co-extrusion mold, film cooling system, film bubble control systems, rotary traction system, correction system, electric corona, ... drop10. No leakage between layer and layer11. The die assembly and disassembly easy cleaning, customers can operate by ...