1. HDPE, LDPE, LLDPE film blowing machine. 2. Double-head Feature: This machine is used for blowing Low-density polyethylene ( ... hardness, strong resistance to corrosion, durable service.3) The die head is plated with hard chrome, of screw mandrel type structure ... ) Air compressor 6) Mechanics screen changer 7) Up and down device 8) Double rewindingMain Technical Specification: ModelSJ-G 55SJ-G60SJ-G ...