Cold Rolled Black / Blue Bake Coated Polished High Carbon Spring Steel Strip for Roller Shutter Doors

Cold Rolled Black / Blue Bake Coated Polished High Carbon Spring Steel Strip for Roller Shutter Doors. 20+ Years Experience: Over two decades of expertise in coated steel production and export, trusted by 1,000+ global clients. Strict Quality Control: ISO 9001 certified with rigorous testing including coating thickness, tensile strength, and surface inspection. Custom Packaging: Standard seaworthy export packing with anti-water paper, PVC film, and steel strapping; customizable per client needs. Wide Application Range: Suitable for roofing, wall cladding, structural steel, appliances, and industrial packaging. Fast Delivery: Normal delivery time is 20-25 days after receiving the deposit; urgent orders can be prioritized. OEM & ODM Support: Professional manufacturer supporting OEM and direct export services with custom logo options. Global Service: Serving clients in 30+ countries with professional documentation and one-on-one export support. Free Samples: Free A4-sized samples or cut sheets available for testing and evaluation (shipping costs may apply).