Surface inspection: Uniform coating with no bare spots; hot-dip galvanized wire typically exhibits a spangle pattern.
Thickness testing: Measured using a magnetic thickness gauge in accordance with the GB/T 4956 standard.
Salt spray test: High-quality products show no red rust within 72 hours (reference: ISO 9227).
In summary, galvanized wire is a composite metal material featuring an iron core and a zinc coating; it combines the strength of iron with the corrosion resistance of zinc, making it an indispensable functional product in both industrial and everyday applications.
