
S350gd Z275 Hdgi Galvanized Steel Coil for Air Duct System. Customizable Dimensions: Thickness 0.12-3.0mm, Width 20-1250mm, Length as Customer's Require. Versatile Zinc Coating: Zinc Coating ranges from 50-500G/M2 to suit various corrosion resistance needs. Multiple Spangle Options: Available in Zero, Mini, Regular, Big, and Skin spangle finishes. Diverse Color Selection: Colors include Blue, Green, Golden, and Yellow for aesthetic customization. Wide Hardness Range: Options from HRB Soft (<60) to Full Hard (85-95) for different applications. Comprehensive Surface Treatment: Offers Oiled, Chromium, Phosphating, Spinpass, and Resistant to Fingerprints. Free Sample Availability: Customers can request free samples to verify product quality before ordering. High Monthly Output: Production capacity of 20,000 tons per month ensures timely delivery.