| 摘要 |
P /OPER/RSH/302691716-CAP.do-1707/2007 -10 A void former for use in the casting of concrete wall panels to form a recess in a surface of the panel, comprises a flexible shell of box-like form is open at one side, an opposite side 5 of the shell being closed and being adapted for co-operation with a connection mounting cast into the panel to be accessible via the recess in the panel. The shell includes a removable rigidifying insert which, after casting of the panel, is removed from the shell to permit removal of the shell from the recess thus formed, by flexing of the shell. 10 _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ |
