... Layer Co-extrusion Haul-Off rotary film blowing machine is applicable for the materials such as LDPE, LLDPE, HDPE, MLLDPE Three Layer Co-extrusion Haul-Off rotary film blowing ... adopts horizontal swing rotation, It replaces die rotation and simplifies die structure. It avoids some problems such as ... leakage, poor sealing and maintenance, which caused by die rotation. 2. It overcomes uneven size of film ...