... 3 layer film extruder is to blow (extrude) LDPE and LLDPE film. 2,Ratio: 30:1 . 3.guarantee:1 year. 3 layer film extruder Feature: ... This machine is to blow (extrude) LDPE and LLDPE hot shrink film for direct wrapping, ... Adoptable material: LDPE, LLDPE, HDPE,PA, EVA, MPE, etc.Advantage:1. This machine is developed from our traditional PE film extrusion machine ...