Product Description 29 years of R&D and manufacturing experience, customized various springs Material Carbon Steel, Stainless Steel, Alloy Steel, Cold Rolled Steel, Music Wire, Copper Wire, 55CrSi, 60Si2Mn, etc. Wire Diameter 0.1mm-10mm Surface treatment Zinc, Chrome, Nickel, Silver, Gold, Tin, Powder coating, Oxide black, Phosphorization, Darcolo, etc Application Automobiles/Electrical Appliances/Lndustry/Machinery/Furniture/Toys/Fitness Equipment/Medical Equipment/Construction, etc. Certification IATF 16949:2016,SGS,ROHS Package Lnner plastic bag, outer carton, can be customized according to customer requirements Production Time 7 Days, According to customer order quantity Payment Terms Pay the balance 30%, 70% before delivery, can be adjusted according to the situation Origin China, Zhejiang, Wenzhou, Yueqing Company Profile Wenzhou Heli Spring Manufacturing Co., Ltd. was founded in 1992. It is a high-quality spring manufacturing enterprise integrating design, production, sales and service. The existing standard factory building is more than 8,000 square meters. With more than 29 years of accumulation and precipitation in the field of spring manufacturing , Heli Spring is committed to helping customers from all walks of life meet current and future social needs. In order to actively expand domestic and foreign markets, accelerate industrial upgrading and product structure adjustment, Kunshan Heli Spring Manufacturing Co., Ltd. was established in Kunshan, Jiangsu in 2005. With an area of 40 acres, it stands out from the fierce competition. Market competition. We have more than 150 modern spring production equipment and testing equipment such as advanced CNC spring coiling machines, spring grinders, heat treatment furnaces, etc., to meet the market's highest requirements for the functionality, reliability and safety of spring products. Heli Spring has passed the ISO9001 quality system certification since 2008, and the company successfully passed the IATF16949 automotive quality management system certification in December 2017. Looking forward to the future, Wenzhou Heli Spring Manufacturing Co., Ltd. has won the market and won the high trust of customers with leading technical standards, excellent product quality, and full-integrated service concept! Continue to carry forward the corporate spirit of cooperation and win-win to create the future! To revitalize the nation Industry contributes. Company workshop site Packaging and inspection Certificates and patents FAQ Q: Are you trading company or manufacturer ? We are a manufacturer with 29 years of accumulation and precipitation in the field of spring manufacturing. Q: How long is your delivery time? A: We have large stock, 3 days for stock items,7-20days for . Q: Do you provide samples? Is it free or need extra fees ? A: Yes, we could offer free samples for the items in stock,just need to pay shipping cost. Customized projects require sample mold fees. Q: What is your terms of payment ? A: 30% in advance ,70% before delivery.