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kahe paralleelse tallaga, I-kujulise ristlõikega üldotstarbeline profiilmetall (vt profiilmetall), a rolled-steel joist (section) of I-section (see: structural shapes)
double T-beam . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/double%20T-beam/1/eng (19.06.2026)