Galvanized steel plate is a welded steel plate with hot-dip or electro galvanized coating on the surface, which is generally widely used in construction, household appliances, vehicles and ships, container manufacturing, electromechanical industry, etc.
The development of hot dip galvanizing production in China has been lagging behind. From 1950s to 1960s, 13 flux hot-dip galvanizing units for single sheet steel plates were successively built, with a capacity of 100000 t / A. However, due to the defects of low output, high cost, poor quality, environmental pollution, poor economic benefits and so on, they have been stopped and switched to production. From the late 1970s, China began to build large-scale broadband hot-dip galvanizing units.