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ot - dip galvanized steel sheet for sheet metal processing
Sheet metal processing Hot-dip galvanized steel coil is hot-rolled pickling or cold-rolled after the semi-finished products, after cleaning, annealing, immersed in the temperature of about 460 ° C molten zinc tank, and the steel plate coated with zinc By quenching and leveling and chemical treatment. SGCC material than the SECC material hard, poor ductility (to avoid deep pumping design), zinc layer thick, poor welding.