The main advantages are: low treatment cost: the cost of hot dip galvanized rust prevention is lower than that of other paint coatings; Durable: In the suburban environment, the standard hot-dip galvanized rust prevention thickness can be maintained for more than 50 years without repair; In urban or offshore areas, the standard hot-dip galvanized anti-rust layer can be maintained for 20 years without repair; Good reliability: the galvanized layer and the steel is a metallurgical combination, becoming a part of the steel surface, so the durability of the coating is more reliable; The toughness of the coating is strong: the galvanized layer forms a special metallurgical structure, which can withstand mechanical damage during transportation and use; Comprehensive protection: Every part of the plating can be zinc plated, even in the depression, sharp corners and hidden places can be fully protected