Non-Galvanized/Galvanized Rolling Shutter Doors Spring Steel Wire

Non-Galvanized/Galvanized Rolling Shutter Doors Spring Steel Wire. Customized Dimensions: Diameter ranges from 0.05mm to 20mm with customizable length options. Galvanized Surface Finish: Available in Hot DIP Galvanized, Electrical Galvanized, and Zinc-Coated finishes. Comprehensive Certifications: Meets ISO, CCC, CE, BS, JIS, GB, ASTM, DIN, and AISI standards. Two-Year Warranty: Covers products kept sealed under dry conditions for two years. Free Sample Availability: Free samples provided for trial tests if stock is available. OEM/ODM Services: Professional manufacturing services for leading global brands with full customization. High Production Capacity: Annual output reaches 180,000 tons with 40+ years of industry experience. Strict Quality Control: 100% inspection including visual and function checks with world-class testing center.