
2025 Steel Extension Spring and Extension Trampoline Spring. Custom Manufacturing: Accepts OEM/ODM orders with custom drawings in PDF, DWG, IGS, and STEP formats. Wide Material Selection: Available in Carbon steel, Stainless steel, Music wire, Alloy steel, and Inconel. Precise Tolerance: Manufacturing tolerance as tight as 0.01mm for high-precision applications. Versatile Surface Treatment: Options include Zinc plating, Nickel plating, Powder coating, and Rust-preventative oil. Low MOQ: Minimum Order Quantity starts from just 1 piece for sample or small batch orders. Fast Sample Lead Time: Samples can be produced within 3 to 7 days after order confirmation. Certified Quality: Holds ISO/TS16949-2002, ISO9001-2000, and ISO14000 certifications. Flexible Wire Diameter: Wire diameter ranges from 0.1mm to 20mm to suit various load requirements.