I-Anti-corrosion ye-galvanized steel pipe welding: Emva konyango lomphezulu, i-zinc yokutshiza eshushu. Ukuba igalvanizing ayinakwenzeka kwisiza, ungalandela indlela yokuthintela ukubola kwindawo: ibrashi ye-epoxy zinc-rich primer, i-epoxy micaceous iron intermediate paint, kunye ne-polyurethane topcoat. Ubukhulu bubhekisa...
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