| 摘要 |
<p>Spacing element for a shuttering for concrete walls, enabling the boards to be kept at a constant distance apart, and enabling their retention when pouring the concrete. It comprises a one-piece rigid steel wire provided, at its ends, with bends which define loops A and A' intended to receive the keys which retain the shuttering open, and stops e, f, g and e', f', g' which keep the two boards of the shuttering at a given spacing h. The invention can advantageously be used on all types of commercially available shutterings. <IMAGE></p> |
