Can end and method for fixing the same to a can body

The inner wall of the tank end (22), a fastener (23) to the box comprises a circle, the connecting frame the inside of the hanging plate extends from the box cover (24), from the inner wall radial direction of extends inward concave outer annular reinforcing ring end (25), and a a reinforcing ring end wall (27) central support plate (26); the clamping plate (24) is opposite to the centre plate is vertical line of 20°-60° inclined angle, and a reinforcing ring end (25) is concave section is less than the minimum effective radius 0.75mm.