Professional Torsion Spring Winding Bar for Heavy-Duty Garage Doors

Professional Torsion Spring Winding Bar for Heavy-Duty Garage Doors. Full Customization: Custom wire diameter, direction, length, and surface treatment available per specifications. High Precision Manufacturing: CNC machining ensures accurate dimensions and reliable performance for all systems. Durable Materials: Constructed from high carbon steel and aluminum alloy for strength and longevity. Corrosion Resistance: Surface treatments like zinc and black coating ensure durability in various environments. 1-Year Warranty: Comprehensive 1-year warranty coverage for peace of mind and product reliability. Fast Delivery: Typical delivery time of 7-15 workdays based on order quantity and MOQ. OEM & ODM Service: Support for custom sizes, designs, and packaging for residential and industrial use. Global Experience: Over 20 years of industry experience serving global clients since 2006.