1. HDPE, LDPE, LLDPE film blowing machine. 2. Double-head Feature: This machine is used for blowing Low-density polyethylene ... industry, etc.Performance and Characteristics: 1) The machine adopts single screw to extrude the material, two ... screen changer 7) Up and down device 8) Double rewindingMain Technical Specification: ModelSJ-G 55SJ-G60SJ-G ... .6×3.4 SJ-G Model Double-head Film Blowing Machine