4140 Cold Drawn Annealed Properties / China Factory 4140 Cold Drawn Steel Bar

We will strive to become a 50CrVA spring steel wire, Shaped Spring Steel Wire, Rhombic oil spring wire ASTM-A401 manufacturer with great comprehensive strength and strong competitiveness to meet the needs of market competition. We sincerely hope to become a strategic partner in your business and grow together with you! Wish we have a pleasant and long terms business together!!! All the employees in factory, store, and office are struggling for one common goal to provide better quality and service.

Valve spring is an important part of valve assembly in the valve distribution mechanism of internal combustion engine. (Valve spring steel wire oil return line) it can ensure that the valve and the seat will remain closed sealing by the force of spring.And the valve spring by strength, stiffness, stability and other constraints, so that its size is limited, leading to its stress state is serious.Therefore, it is particularly important to analyze the structure of the valve spring and optimize its parameters.

With wide experience and expertise, Friend Metal is engaged in the developing, manufacturing and marketing of valves spring wire ASTM-A230-99, ASTM-A401, EN10270-2, JIS G3561. As a professional manufacturer, we now brings you high quality various steel wires made in China which comes in high strength, well toughness and excellent wearing resistance. We also welcome your customized orders.

To provide you with world-leading level and high-quality 4140 Cold Drawn Annealed Properties / China Factory 4140 Cold Drawn Steel Bar at reasonable prices is the purpose of our company's survival and development. Our company is looking forward to cooperating with you, serving you and becoming a partner you can trust and rely on. Our items have national accreditation requirements for qualified, high quality goods, affordable value, was welcomed by people today all over the world.