posed by three squeezing machines,joint squeezing rotatory die head ,system of wind cooling and water cooling ,double axial film ,double -bubble squeezing productive line ,infra-reheating ,motor control system and parts etc. 2.Die-head and cooling wind ring rotates continuously in order to ensure drawing in and rolling up film is even and smooth . 3.(100-200)change of die head ,applying to blow film with different specifications. 4.Dispose various functional elements on the spot according to the selection of consumer.