Coated steel can lid with opening arrangement not requiring repair coating on outer and inner surfaces

摘要

A sheet steel easy open can lid made by a resin-laminated sheet steel and not requiring repair coating of the inner and outer surfaces thereof, wherein use is made of a sheet steel laminated with a resin such as polyester and a tear-along groove, having as its main constituent element at the peripheral edge of the opening piece a thin portion (4) having the specified minimum thickness is formed by composite cold-forming. The part or substantially all of this can lid can be easily opened by hand.