... ,pof shrink film machine 2,pof 3 layers 3,pof film making machine 4,pof ... This machine suitable for producing different polymer structure and 3 layers heating shrink film, the machine has good ... mechanical drive was controlled by conversion, run steadily and reliably. Infrared technique was used to the blowing ... .the material is lldpe mlldpe and pp.(pof film, pof shrink film,pof machine ...