Two layer co-extrusion ldpe/hdpe film blowing machine 2G-SJ45-FMJ1300 2G-SJ55-FMJ1500 2G-SJ65-FMJ1700 Marketing Area: It is used for blowing the various plastic films of low density polyethylene (LDPE), high density polyethylene (HDPE) and linear low density polyethylene (LLDPE) etc. It employes head rotation with two layer extrusion,double wind ring ,speed regulation by frequency variation,two ...