| 摘要 |
An articles and method for applying identifying or decorative indicia to a parent body, such as the metal surface of an industrial tool or the like. Indicia forming material, for removing a portion of the parent body or for building up such parent body in a predetermined pattern, is carried in a self-supporting unit which isolates the indicia forming material prior to use. Etching acid solutions thickened to a gel or paste-like consistency so as to be substantially self-supporting, or substances capable of bonding themselves to the parent body, are employed to react with the parent body to form the desired indicia thereon.
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