| 摘要 |
<p>The invention concerns a steel section tagging system in which an identification mark, typically a computer-readable 2D code (22, 56), is applied to the steel section (12, 62). The mark is located in a recess in or on the steel section. In a preferred embodiment, the mark is carried by the base of a cup-shaped receptacle (16, 60) which is fixed in a hole (14) through the steel section. The mark is protected by a plug (26, 68) located over it in the receptacle. The plug is typically moulded or castin situ of a material, such as a settable refractory cement, over the identification mark and is removable to expose the mark when identification of the steel section is necessary. <IMAGE></p> |
