Application: The line is used to blow LDPE??HDPE plastic film. It is widely used in the packing of industrial goods and food, and agricultural covering (ground film, greenhouse film). Features: The barrel and screw of the extruder adopt the high-grade alloy steel that are processed precisely and goes through nitridationm treatment, so they are most outstandingly grind-resistant, erosion-resistant as well as exact and reliable. It also possesses the characteristics of automatic constant temperature controlling system, multi point control, highly controlling accuracy. Auxiliary machine installs platform balustrade worktable, so it can be operated easily and safely. Roll-up machine adopts multi-roller friction wind-up structure.