
Hot Dipped Galvanized Steel Coil / Hdgi Coil Gi Coils Zinc Coated Steel Coil Gl Coil with Spangle for Construction. Grade & Material: High-grade DX51D, SGCC, and ASTM A653 standards, suitable for deep drawing and structural use. Superior Corrosion Resistance: Hot-dipped galvanizing process with a zinc layer ranging from 30g/m2 to 275g/m 2 for long-term protection. Surface Quality: Available in Zero, Minimum, Regular, or Big spangle with optional anti-fingerprint and oiled treatment. Precision Thickness: Advanced rolling technology ensures uniform thickness with a tolerance of within 0.02mm. Versatile Application: Widely used in roofing sheets, corrugated tiles, automotive parts, and household appliance panels. Packing & Shipment: Standard sea-worthy export packing with inner paper sleeve, steel protectors, and multiple metal straps.