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karastamiseks kuumutamine gaasileegi abil (vt kuumutus, leekkarastus), heating by gas flame (torch) for hardening (see: heating, flame hardening), нагрев газовым пламенем при закалке (см. нагрев, закалка)
torch heating . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/torch%20heating/1/eng (01.07.2026)