Leading Factory Stainless Steel Adjustable Torsion Spring Manufacturer Constant Force Extension Spring

Leading Factory Stainless Steel Adjustable Torsion Spring Manufacturer Constant Force Extension Spring. Full Customization Options: Customization from samples, designs, and full customization available. Extensive Material Selection: Stainless steel, carbon steel, music wire, beryllium copper, brass, and alloy steel. Wide Wire Diameter Range: Available wire diameter from 0.1mm to 18mm for diverse applications. Surface Treatment Services: Shot peening, plating, and powder-coating via approved sub-contractors. Comprehensive Testing Equipment: Includes digital hardness, torsion strength, elasticity, life, and salt spray testers. High Supply Capacity: Weekly production capacity ranges from 7,000,000 to 9,000,000 pieces. OEM and ODM Services: Professional OEM service and ODM design support available for clients. Free Sample Availability: Free samples are available upon request for product verification.