FIELD: composite materials. SUBSTANCE: edge 7 of diaphragm 2 is made such as to embrace mold 1 over its outline. Sealing member of diaphragm is made in the form of protrusion 5 of the same material having continuous cross-section, e. g in the form of trapeze. Protrusion 5 interacts with closed pocket 4 of mold 1 shaped in the same manner as protrusion. Invention may find use for manufacturing variously shaped parts applicable in aeronautics, automaking, and other industries. EFFECT: improved structure. 1 dwg
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