Compression Springs
Compression springs are the most common type of spring used today. They can be made from any size or type of material capable of being coiled. As this picture shows, compression springs come in many different sizes and types. Spring ends may be closed & squared, closed & ground, open, multiple coils closed on each end or in the middle. Also different shapes of the body can be accommodated for different effects such as cone, barrel, or hourglass.
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