YongSheng: Your Premier Supplier of Flat Coil Springs

YongSheng – the leading manufacturer of flat coil springs– has focused on this for over 23 years. YongSheng is a comprehensive enterprise that integrates research and development, production, and sales. It is committed to providing customers with high-performance, stable, precise spring products.
We have passed the ISO9001 and ISO14001 certifications, and are strictly according to ROHS and CE. With advanced workshops and over 100 production and testing equipment, we will always be your preferred flat coil spring supplier.
According to the strict quality assurance process, our spring products will be tested before shipping, such as tension testing, torsion testing, hardness testing, video dimension measuring, lifetime testing, and so on. Special techniques like lubricating and high-temperature baking will enhance the lubrication and shape fixation.
We have cooperated with more than 5000 customers, including some top 500 enterprises such as Walmart, L’Oreal, Tesco, etc.
YongSheng, Your Premier flat coil springs Manufacturer, supplies a variety of flat coil springs, including constant force springs, power springs, constant torque springs, variable force springs, spiral torsion springs, and covers mounting & assembly services. Meanwhile, contact us right now!
Take a Glance at Our Workshop & Laboratory






We Have Served and Be Serving Customers
Listen to What Our Clients Say about Us

I can’t deny that YongSheng is really a reliable supplier. Last year I purchased some power springs from them, very quickly I received the goods with a nice package. And then sold them to my end-users, The feedbacks are good about the products after using, and emphasized would continue to buy such excellent products. So I will keep cooperating with him this year.

It was in 2012 when we cooperated with YongSheng for the first time. In that time, we needed customized the constant force springs according to the drawings. Each demand was satisfied, even every detail. They have a good and comprehensive service.


