| 摘要 |
<p>An adjustable boxing assembly including a thin-walled form member (11), having an outer face (16), of web (13), which constitutes a form surface against which concrete may be placed, and a further form member (12), having an outer form surface (32), of web (29), against which concrete may be placed, the outer form surface (32) being engageable behind the web (13) and maintained in such an operable attitude by clamping means (100) such that the two form surfaces are substantially co-extensive.</p> |
