| 摘要 |
The shuttering panel is made from two membranes (1, 0) joined together to form five surfaces each (2 - 6 and 7 - 10) with edges (12 - 15). The first membrane (1) is supple, elastic and compressible; the second one (0) is supple, resistant to traction and has a slight modulus of elasticity. The main surface (2) of the first membrane has motifs to be imprinted in the concrete.
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