FIELD: mechanical engineering. SUBSTANCE: invention focuses on tube-shells applicable in aerospace engineering, pipelines in petrochemical, gas, and building industries, etc. Tube- shell contains threads in the form of rigid structure "shell-core", core containing high-module threads and shell completely hardened epoxy-containing binder, Elastic deformation of threads in matrix (thermoplastic or elastic-supple binder) proceeds without breakage up to limiting loads, thereby providing high strength, tightness, and reliability of tube-shells. EFFECT: improved performance characteristics. 2 cl
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