1,3 layer film extruder is to blow (extrude) LDPE and LLDPE film. 2,Ratio: 30: ... year. 3 layer film extruder Feature: This machine is to blow (extrude) LDPE and LLDPE hot shrink film for ... buy the machine, the prescription and craftwork is free to send to you.Adoptable material: LDPE, LLDPE, HDPE,PA, EVA ... export, we use big extrusion quantity screw with length to diameter rate of 32:1. (If you need ...