John Evans' Sons

1 Spring Avenue, P.O. Box 885
Lansdale, PA 19446

About John Evans' Sons

John Evans’ Sons is the international leader in design and manufacturing of constant force springs, constant force spring assemblies and pusher springs (variable force). Custom design, in-house tooling and precision manufacturing, combined with a wide & varied stock spring selection allows us to serve a wide variety of applications from military to medical, high-tech, point of purchase and retail, and aerospace.

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