Hot dipped galvanized steel coil has excellent bare corrosion resistance due to its high-quality zinc layer and passivation film characteristics.
Gi Coils Hot Dipped SGCC Dx51d Metal Zinc Galvanised Sheet Roofing Materials 2mm Thick Z150 Z120 Z80 Regular Spangle Zinc Coated Galvanized Steel Coil
Coiling→double unwinding→cutting head and tail cutting→welding→ alkaline cleaning→primary brushing→electrolytic cleaning→secondary brushing→hot water rinsing→hot air drying→inlet looper →continuous annealing→hot-dip galvanizing (ceramic zinc pot)→air knife blowing (introduced)→air cooling after plating→water quenching-→levelling machine (reserved)→stretching leveler→passivation treatment(reserved for fingerprint resistance)→export looper→oiling→Cutting→coiling→unrolling→weighing→packing




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