HDPE/LDPE Film Blown Machine, High speed film blowing machine, plastic film EXTRUDER,rotary die film blowing,Ruian Film ... Blowing Feature: Mode SJ-50-85 squeezing machine is adopted rotatory die head,machine tube is adopted 38CrMoAl,having the best ... -resisting performance after nitrogen treatment and precision processing.FM-600 auxiliary machine can adjust and operate freely within the range of ...