Stålvaier-element for blanding inn i etterfölgende herdemateriale

摘要

The element consisting of hook-shaped ends (3) and a middle portion (2). The length/diameter ratio of which is between 20 and 100. The middle portion of the element (1) displays a circular cross-section over essentially its entire length and that the hook-shaped ends of the element are deformed by flattening. The hook-shaped ends of the wire element are flattened in a plane which is parallel with the plane of the wire element. The hook-shaped ends are flattened in a plane which is perpendicular to the plane of the wire element. The degree of flattening of the flattened ends is constant over their length. The degree of flattening of the flattened ends is variable over their length.