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valtsitud, ekstrudeeritud või tõmmatud sisemise õõnsusega profiilmetall, nt toru (vt profiilmetall), structural shapes/sections produced by rolling, extrusion, and drawing with hollow profile, such as tubes (see: structural shapes)
полые профили . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/%D0%BF%D0%BE%D0%BB%D1%8B%D0%B5%20%D0%BF%D1%80%D0%BE%D1%84%D0%B8%D0%BB%D0%B8/1/rus (09.11.2026)