Since 2014, we, Zhuji Zhengxin Spring Co., Ltd, as a spring manufacturer in Zhejiang, China, has been achieving very strong experience in a variety spring design and manufacture, including valve spring,damping spring, torque wrench tool springs, high temperature spring, tensioner spring, pneumatic element springs, spiral spring, die spring, extension spring, torsion spring, wavy spring, retainer ring, disc spring, etc. We have a professional technology team with 10 people, 3 of them as spring technology specialists, take charge for spring material and spring manufacturing process development. The advanced spring manufacturing and inspection equipments, stable quality systems ensure we can produce high quality products.Please feel free to contact us. We look forward to working with you and offering you our best service possible through our experience, our creative designs and our great flexibility to match your requirements.