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EVS-EN 10217-1:2019 Terasest keevitatud survetorud : tehnilised tarnetingimused. Osa 4, Elekterkeevitatud madalal temperatuuril kasutamiseks spetsifitseeritud omadustega legeerimata terasest torud = Welded steel tubes for pressure purposes : technical ...
Eesti Standardikeskus, Eesti Ehitusmaterjalide Tootjate Liit