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põkkõmblus täisnurkservadega ettevalmistusega e nn I-servavahemikuga põkkõmblus (vt põkkõmblus), butt weld with square ends an two square angles; no welding preparation is required (see: butt weld)
square butt weld . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/square%20butt%20weld/1/eng (09.07.2026)