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Atslēgvārdi Welded seam on stainless steel ventlation pipes. Metal industry. Close-up. construction equipment technology industrial metal steel industry heat hot pipe manufacturing chimney workshop glow arc engineering iron heavy work maintenance repair stainless tool hold ventilation tech professional processing product skill mechanical precision process production welding apparatus galvanized capacity welding equipment metalworking shielding gas stainless steel argon overlap welding machine metalwork welded seam welding torch shielding gas arc welding welding weld