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Extension spring

Extension springs are really cool! They can stretch if you pull at them and then spring back when you stop. They are like magic springboards that make many things work better. 

The compression extension spring are a kind of spring that can stretch as you pull it. They consist in a long bar of metal, closely coiled. Pull on the spring, and it stretches, the coils moving away from each other and storing energy. Once you let go, the coils snap back into place and release that energy, causing the spring to snap back to its natural shape. 

How extension springs work in various applications

What are extension springs used for? extensions springs are used in dozens of items. For instance, they are in trampolines to make them bouncy, in screen doors to help those doors close on their own, and in garage doors to help them open and shut smoothly. Extension springs also support the functioning of car engines by managing the timing of the valves and are used in toys to create entertaining motion. 

Why choose Lisheng Extension spring?

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