bobines galvanitzades, la placa d'acer prima es submergeix al bany de zinc fos per fer que la superfície de la placa d'acer prima de zinc s'adhereixi. It is mainly produced by continuous galvanizing process, that is, the coiled steel sheet is continuously immersed in a galvanizing tank with molten zinc to make galvanized steel sheet; alloyed galvanized steel sheet. This kind of steel plate is also manufactured by hot dipping method, but immediately after leaving the tank, it is heated to about 500°C to form an alloy film of zinc and iron. Aquesta bobina galvanitzada té una bona adherència a la pintura i soldabilitat.