| 摘要 |
<p>The process if for attachment of fixture elements in building elements made of porous material, such as lightweight facing clinker concrete or aerated concrete. A hole is made in the building element, and one end of a pref. spring-steel metal strip is inserted lengthways into this. The end section of the strip is punched to form barbed hooks, or similar, aligned so as to impede withdrawal of the strip. After insertion, the strip is withdrawn a little, so as to be firmly anchored by the barbs. The required object is then attached to the protruding part of the strip, which may have one or more holes through it.</p> |
