Comprehensive Customization: Customizable wire diameter, outer diameter, length, spring rate, hook type, and end treatment.
Wide Material Selection: Available in carbon steel, music wire, stainless steel 304/316, and galvanized steel.
ISO Quality Certification: Manufacturing process complies with ISO 9001:2015 and IATF 16949 standards.
Fast Lead Time: Most custom springs manufactured within 7-25 days with quotes provided in 24-48 hours.
Free Sample Availability: Free samples available from stock; charged samples ($100) refunded after mass production.
Global Shipping Options: Worldwide shipping via UPS, FedEx, DHL, or customer preferred providers from Ningbo Port.
100% Quality Inspection: All finished products undergo visual and functional inspection before delivery.
OEM/ODM Services: Full customization available from samples or designs with flexible customization options.