YongSheng – the leading manufacturer of flat coil springs in China, has been focusing on it for over 18 years. YongSheng is a comprehensive enterprise integrating research and development, production, and sales, committed to providing customers with high-performance, stable, precise springs products.
We have passed the ISO9001, ISO14001 certification, and strictly according to ROHS and CE. with advanced workshops and over 100 production and testing equipment, we will always be your preferred flat coiled springs supplier.
According to the strict quality assurance process, our springs product will be tested before shipping, such as tension testing, torsion testing, hardness testing, video dimension measuring, lifetime testing, and so on. Special techniques like oil-soaking, high-temperature baking will enhance the lubrication and shape-fixed.
We have cooperated with more than 5000 customers, including some top 500 enterprises such as Wal-mart, L’Oreal, Tesco, etc.
YongSheng, Your Premier flat coil springs Manufacturer, supplies a variety of flat coil springs, it includes constant force springs, power springs, constant torque springs, variable force springs, spiral torsion springs, and covers mounting & assembly services meanwhile, Contact us right now!