1. Low treatment cost: The cost of hot-dip galvanizing for rust prevention is lower than that of other paint coatings; 2. Durable: In suburban environments, the standard hot-dip galvanizing rust-proof thickness can be maintained for more than 50 years without the need for Repair; in urban or offshore areas, the standard hot-dip galvanized anti-rust layer can be maintained for 20 years without repair; 3. Good reliability: the galvanized layer and the steel are metallurgically bonded and become part of the steel surface, so The durability of the coating is relatively good; 4. The coating has strong toughness: the zinc coating forms a special metallurgical structure, which can withstand mechanical damage during transportation and use; 5. Comprehensive protection: every part of the plated parts Can be coated with zinc, even in recesses, sharp corners and hidden places can be fully protected; 6. Save time and effort: the galvanizing process is faster than other coating construction methods, and can avoid the need for work on the construction site after installation The time required for painting.