... blowing LDPE,HDPE,LLDPE which has been widely used in flexo package and bag making Usage: Its extruder, cylinder ... helps increase the production capacity. It is applied to blowing the plastic films like low density polytene (LDPE), ... clothing, rubbish bag and vest ones. Main parameters:Model SJ-50SJ-55 SJ-60SJ-65Screw diameter 50mm55mm60mm65mmScrew ratio ... frame fixed or lift up. PE film blowing machine