| 摘要 |
The invention relates to a type of special formwork for concrete structures. It is made of a material which is synthetic, malleable, rigid, strong and incorruptible. It is cut up into straight or bent adjustable elements in the form of two cheeks 1 connected to a bottom 2 or in the form of a single cheek connected to a half-bottom. Among the more advantageous applications of the invention may be mentioned the definitive and rapid formwork for reinforced concrete beams and sills for the foundations of buildings. <IMAGE>
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