Which are widely used for packing liquid, printed base material, products for export and industrial products,etc. SJ-G Series Double-layer Co-extrusion Rotary Die Filmuse:It is used for blowing the plastic laminated film of low density polyethylene (LDPE), high density polythylene(HDPE)and linear low density polyethylene(LLDPE)etc,Which are widely used for packing liquid, printed base material, ...