Hot-dip galvanized steel strip (GI slit coil) is produced from cold rolled substrate via continuous hot-dip galvanizing line, then precisely slit into narrow widths as customer required. It is the core raw material for manufacturing galvanized round tubes, square & rectangular hollow sections, cable trays, light steel keels, packing strips and stamped hardware parts. The zinc coating provides sacrificial anode anti-corrosion protection with strong adhesion, no peeling after bending. Custom zinc coating weight, spangle type, passivation & oiling treatment are available.