Abstract: A metal can body of improved impact resistance of the body wall is formed by drawing and/or pressing subsequent to preliminary coating of an organic resin on at least one side of the metal surface that becomes the inner surface of the can body. The main component of the organic resin coating is a polyester resin containing oriented crystals. The intrinsic viscosity (IV) of the polyester layer is 0.60 or higher. Parameter A representing the ratio of axial orientation in the direction of the can height is A.gtoreq.0.40. and Parameter B representing the degree of plane orientation of axially oriented crystals in the direction of the can height is B.gtoreq.0.00.

Abstract: For the easily openable metal vessel lids openable by severing the scope with the aid of an opening piece, the formation of pinholes and/or cracks can be prevented, the corrosion resistance of the vessel lids as a whole (including the scored part) is improved, and the openability can be markedly improved by lessening the force required to open the vessel lids and, furthermore, feathering can be prevented by limiting the X-ray diffraction intensity ratio of the biaxially drawn polyester film provided onto at least the interior side of the vessel to within the range of from 4 to 17 and also by limiting the anisotropy index of in-plane crystal orientation to 30 or less.