This machine uses LDPE or LLDPE as material to produce casting stretch film. Three Screw Co-Extrusion, each screw allow different formulas to produce single side sticky stretch film, Mainly used for machine wrap type stretch film making. Screw and Barrel use 38CrMoAIA Alloy steel, after nitriding and special treatments. Machine cooling with water circulation, best cooling effect and best transparency of stretch film.