| 摘要 |
a) Spacer cone for concrete formwork, and method for manufacturing such a cone. b) Cone, characterised in that it comprises: - an inner compression sleeve (11), made of a material completely resistant to compression, equipped with a support collar (14, 13) at each of its two ends, - an outer form removal sleeve (12), which is frustoconical and made of plastic, covering the compression sleeve (11) practically over its entire length and bearing radially on the compression sleeve, the outer sleeve (12) being integral with the compression sleeve (11). <IMAGE>
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