... (extrude) LDPE and LLDPE film. 2,Ratio: 30:1 . 3.guarantee:1 year. 3 layer film extruder Feature: This machine is to blow ... .Adoptable material: LDPE, LLDPE, HDPE,PA, EVA, MPE, etc.Advantage:1. This machine is developed from our traditional PE film extrusion ... cheaper machine with less production, screw of 28:1 is available).3. Double-layer rotational die is employed and the gearbox is ...