... film blowing machine Three-layer Coextrusion Rotary Die Film Blowing Machine is for blowing three layers film of HD/LD/LLDPE film blowing machineThree-layer Coextrusion Rotary Die Film Blowing Machine ... frost, insulation oxygen, oil resistive, and so used for light and heavy-duty packaging, for ... vertical cutting device, cooling water row pipe, film spreading roller, scrap collecting device, etc.Main ...