15 30 45 60 90 Degree Spiral Elbow Bending Metal Spiral Round Air Duct Elbows

15 30 45 60 90 Degree Spiral Elbow Bending Metal Spiral Round Air Duct Elbows. Corrosion Resistance: Made from galvanized or stainless steel for excellent strength and corrosion resistance. Smooth Airflow Design: SR style features smooth interior surface for minimal friction loss and optimal airflow. Structural Strength: SR2C design includes external corrugations with stiffeners to enhance structural rigidity. Wide Size Range: Available in diameters from 100mm to 1250mm and lengths from 100mm to 1250mm. Multiple Angles: Offered in 15, 30, 45, 60, and 90-degree angles to meet diverse HVAC needs. Certified Quality: Products hold ISO and CE certifications ensuring compliance with international standards. Full Customization: Supports full customization including materials, thickness, and specific fittings. Integrated Manufacturing: Since 2011, evolved into a fully integrated manufacturer with advanced production lines.