Purpose: The present invention provides a multi layer film comprising a polyolefin film, an aluminum foil and a polyamide layer which are laminated sequentially, wherein the aluminum foil is adhered directly to the polyolefin film without any anchor coat agent or adhesive and {HEAD ~ the multi layer film} is excellent in {TAIL ~ adhesion strength} between the polyolefin film and the aluminum foil and in low temperature resistance 
Purpose : The present invention provides a multi layer film comprising a polyolefin film , an aluminum foil and a polyamide layer which are laminated sequentially , wherein the aluminum foil is adhered directly to the polyolefin film without any anchor coat agent or adhesive and { HEAD ~ the multi layer film } is excellent in { TAIL ~ adhesion strength } between the polyolefin film and the aluminum foil and in low temperature resistance
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