... LLDPE film blowing machineThree-layer Coextrusion Rotary Die Film Blowing Machine SetFunction: The lines are designed and developed by our corporation ... installed to the lines, such as length counting device, vertical cutting device, cooling water row pipe, film spreading roller, scrap ... LDPE, LLDPEScrew DiameterΦ55×2, Φ60×1Φ60×2, Φ65×1Φ65×2, Φ70×1Screw L/D Ratio28:128:128:1Screw Speed15-150r ...