| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a metal can with a screw for improving the strength of the upper ends of a mouth section and a shoulder section. SOLUTION: The metal can with the screw is provided with at least one or more smooth recesses 4 bending to the inside and at least one or more smooth protrusions 5 bending to the outside formed on the periphery of a tapered upper end 3a expanded gradually from the lower end 2a of a screw section of the mouth section in the radius direction.</p> |
