
Stainless Steel Extension Spring High Tensile Strength for Machinery. High Strength & Durability: Top raw materials ensure high strength, deformation resistance, fatigue resistance, and long life. International Quality Standard: Strictly follows Japanese JIS industry standards to meet international high quality requirements. OEM & Customization Service: OEM service available with minor customization and customization from designs. Advanced Manufacturing: Equipped with automatic spring coiling machines, CNC grinding, and heat treatment lines. Rigorous Quality Control: ISO9001 certified with CNC tension/compression testing and fatigue testing equipment. Proven Manufacturer: Established in 2008 with over 90 invention patents and high-tech enterprise honor. Fast Lead Time: Average lead time within 15 workdays for both peak and off-season periods. Low MOQ: Minimum order quantity is only 10 pieces, suitable for various business needs.