Supply shaped springs, shaped springs provide factory price, butterfly spring material, shaped spring specifications. On a regular basis to provide you with the latest market trend analysis Shaped spring and raw materials price reports and statements, Hebei Yongnian constant light spring is a professional supplier shaped springs, disc springs specifications, our shaped spring product quality, reasonable price, complete specifications, now New shaped spring just the factory, welcomed the sessions of the new and old customers to order. For the important spring, but also for extreme pressure processing. Forced treatment is at the limit of the spring load by load duration 6 ~ 48h, in order to produce plastic deformation and residual stresses in the spring wire cross-section of the danger zone. Due to residual stress and work stress opposite sign, so extreme pressure treated spring maximum working stresses small, butterfly spring, once extreme pressure treatment can increase the carrying capacity of the spring static load of 25%. If the shot peening treatment can be increased by 20%. But for long-term vibration, high temperature and corrosive medium spring, and the spring should not be used for general purposes of this hardening process. Supply shaped springs, shaped springs provide factory price, butterfly spring model, shaped spring specifications. On a regular basis to provide you with the latest market trend analysis Shaped spring and raw materials price reports and statements, Hebei Yongnian constant light spring sessions welcome new and old customers to order. Shaped spring to provide the most useful information for businessmen. 70 # 72A 72B implementation of standards: GB / T4357-89 "carbon spring steel wire." The standard is cold drawn carbon spring steel of common standards, mainly used for the production of static spring stress state in a variety of work. Butterfly spring butterfly spring manufacturers Top Model _ | _ butterfly champion spring constant light provided by Yongnian constant light spring. Yongnian constant light spring (www.hgtanhuang.com) is a professional, "spring, compression spring, extension spring, disc springs, rubber springs, die springs, spring mining equipment," the company. Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "constant light spring" brand has a good reputation. We adhere to the "service first, customer first" principle, so that constant light spring to win the trust of customers in the public spring, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!