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Prepainted Galvanised Steel Coil/PPGI/Corrugated Roofing Sheets Coil factory with low price steel coil. Galvanized steel is designed to prevent the steel plate surface from corrosion and extend its service life. Coated with a layer of metal zinc, these steel plates are widely known as galvanized sheets.

According to production and processing methods, they can be categorized as follows:

1) Hot Dip Galvanized Steel: Thin plates immersed in a melting zinc bath to achieve surface adhesion of a zinc sheet. The continuous galvanizing process is mainly adopted, where continuous rolls of steel plates are passed through the melted zinc plating tank.

2) Alloyed Galvanized Steel: This type of steel plate is manufactured using the hot dip method, but is immediately heated to approximately 500°C afterward to generate a zinc and iron alloy membrane. This process ensures excellent coating adhesion and weldability.