After identifying the problems of Auto Spring, Dongguan Yongqiang spring hardware Co.,Ltd. will arrange the most professional after-sales team to help you. By following the instruction manual, we are responsible for repairing the products for free during the warranty period. During the usage of the product, you can send the product back to us for repair. Once the product is out of warranty period, we will charge you for the parts and accessories.

Yongqiang, far ahead other similar enterprises, is popular among the customers. Yongqiang's custom hardware is various in types and styles to meet the different needs of customers. Yongqiang custom torsion spring has been inspected to meet general quality standards. It has been tested in respect of colorfastness, stitching strength, seam strength, size-change, and seam-twisting. The product can be customized with different dimensions. The product is not prone to deformation caused by large temperature difference. Its heavy-duty components and parts are designed to withstand great abuse in changing environments. The product is highly resistant to rust.

Stainless steel spring has a great appeal to we as a business tenet. Ask!