The raw materials have gone through multiple tests and the results show they are perfect for manufacturing high-quality compression spring . In terms of their physical properties such as density and mass, we have conducted strict tests on them because these properties may change when subjected to certain variables such as heat which may influence the quality of the finished products. Regarding the chemical properties, we have hired highly educated and experienced technicians to help detect them. Dongguan Yongqiang spring hardware Co.,Ltd. does our utmost to ensure the raw materials conform to the standards.

Based in China, Yongqiang has developed into a global manufacturer and supplier. We focus on designing, producing, and marketing heavy duty spring. Yongqiang's medical spring is various in types and styles to meet the different needs of customers. The extensive infrastructural facility that is properly equipped with all the latest amenities that help this product be of the premium quality. It shows a perfect high tensile strength when being used. The product exists in people's daily life or work. It brings many benefits such as improving the overall efficiency and saving electricity bills. It remains stable working performance under high strength conditions.

We target becoming a wide famous auto spring supplier in the next future. Inquire now!