| 摘要 |
<p>The shuttering for use with concrete etc. comprises sections each consisting of a metal frame in which a shuttering panel is secured. The frames (3) are so constructed that they are in contact with each other only by flanges (1,2) protruding from their outer edges. The flanges have faces which are extensions of the panel surface, and clear of the flanges the frames have tapering recesses opposite each other, in which the mating tapering legs of coupling pieces fit. One recess can have a pair of tapering sections in opposite directions and joined together.</p> |
