Precision spring manufacturers, Xufeng Hardware Factory (certified), the spring is provided by Dongguan City, Xu-feng Hardware Products Factory. Dongguan City, Xu-feng Hardware Products Factory (www.dglijing168.com) is specialized in the "spring-like, lathe category, stamping class, spring, torsion spring, retainer, battery spring, shaped bomb" of the enterprise, the company receives "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Miss Liu. Dongguan City, Xu-feng Hardware Products Factory is a professional manufacturer of metal springs, lathe parts and stamping parts of the enterprise, the factory has advanced technology and equipment springs, modern factories and professional personnel, products sold around the world. Applications disc spring with small size, large storage, a combination of ease of use and other fine features, widely used in national defense, metallurgy, engineering, power, machine tools and other machinery industries. Designed according to the status and conditions of use of force status, using the company's self-developed computer-aided design system to determine the geometry of disc springs and related processing requirements. Bucking the conditions of use according to the customer, the selection of suitable materials spiral spring, and satisfy customer needs. Common materials 60Si2MnA, 50CrVA and all kinds of stainless steel. Surface treatment method for surface treatment of disc springs have blue, phosphate, electroplating, electrophoresis and mechanical galvanizing. Dongguan City, Xu-feng Hardware Products Factory is a professional manufacturer of metal springs, lathe parts and stamping parts of the enterprise, the factory has advanced technology and equipment disc springs, modern factories and production professionals spring manufacturers, selling products around the world. Tension springs (Extension Spring) is subjected to axial tension coil springs, tension springs are generally circular cross section with the material. When not bear the load, are generally tight and there is no gap between the coils of the spring tension. Tension springs (Extension Spring) Contrary to the tension spring works. Tension springs back when pressed role in stretching the spring is stretched or pulled back in time. When the tension springs pull the two ends of the spring will be trying them back together. Many different terminal devices or "hook" is used to ensure that the source of the tension spring tension. Tension springs commonly used in medical respiratory equipment, motion control, medical mobile devices, hand tools, home care equipment, damping, spring pump, mechanical and electronic hardware protection, flow control valves, mechanical aerospace components, actuators, switchgear .