লোহাকে গ্যালভানাইজিং করতে ব্যবহৃত হয় নিচের কোনটি?

Galvanizing, protection of iron or steel against exposure to the atmosphere and consequent rusting by application of a Zinc (দস্তা) coating. Properly applied, galvanizing may protect from atmospheric corrosion for 15 to 30 years or more. Source: britannica.com