NOVELTY - A multilayer film comprises nylon layer (ONy) which contains stretched nylon film consisting of nylon 6 as raw material, aluminum layer (Al), polyolefin layer (PO), and polyethylene terephthalate layer (PET) in order of PET/ONy/Al/PO. Based on stress strain curve obtained by subjecting sample of multilayer film which has width of 15 mm, gage length of 50 mm, and tensile velocity of 100 mm/minute to tension test in 4 directions (machine direction (MD), transverse direction (TD), 45?o direction, and 135?o direction of stretched nylon film), elastic modulus in 4 directions is 1000-2000 MPa.    USE - A multilayer film for cold molding used for multilayer film wrapping material, battery, and molded objects (all claimed).    ADVANTAGE - Occurrence of spring back during cold molding process can be suppressed. The multilayer film exhibits excellent moldability during cold molding process.    DETAILED DESCRIPTION - A multilayer film comprises nylon layer (ONy) which contains stretched nylon film consisting of nylon 6 as raw material, aluminum layer (Al), polyolefin layer (PO), and polyethylene terephthalate layer (PET) in order of PET/ONy/Al/PO. Based on stress strain curve obtained by subjecting sample of multilayer film which has width of 15 mm, gage length of 50 mm, and tensile velocity of 100 mm/minute to tension test in 4 directions (machine direction (MD), transverse direction (TD), 45?o direction, and 135?o direction of stretched nylon film), elastic modulus in 4 directions is 1000-2000 MPa, tensile stress ~s_2 in limit of proportionality in 4 directions is 20-40 MPa, and stress ratio A (~s_1/~s_2) in 4 directions is \~2.5, where ~s_1 is tensile stress during strain at break ~i_2 of 0.5 (elongation at break of 50%) in 4 directions. INDEPENDENT CLAIMS are included for:    (1) molded object produced by subjecting multilayer film to draw forming process; and    (2) battery comprising multilayer film and battery main body covered by multilayer film in which PET serves as outer surface side and is used as exterior material.    DESCRIPTION OF DRAWING(S) - The drawing shows a stress strain curve obtained by subjecting multilayer film to tension test. (Drawing includes non-English language text).