John Evans’ Sons, Inc.
John Evans‘ Sons, Inc.Request A Quote
Lansdale, PAJohn Evans‘ Sons is the international leader in the design and manufacturing of constant force springs, constant force spring assemblies and variable force pusher springs. Custom design, in-house tooling and precision manufacturing, combined with a wide & varied stock spring selection allows us to serve a wide variety of high tech applications from military to medical and from the depths of the seas to aerospace.