If you want to see a prime example of an extension spring, take a look at a trampoline. All around the parameter, attaching the canvas to the frame, are extension springs.
Do you have to jiggle your key to get it to work? Or pull it slightly out of the lock before it will turn? Do you have a spare key for your home in the event that you're locked out? It may be time to get a duplicate key made.
Have you ever wondered how metal spring clips are made? One ideology that holds true with just about every identifiable item we know of is that the longer they have been around, the more time they have had to evolve.
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Company Name: Ruian Huilida Metal Products Co.,Ltd Address: N0 64, Luoshan Rd, Shangye Village, Changqiao, Tangxia Town, Ruian, Zhejiang Province, China Tel: 0577-65261991/7 13967792101 Fax: 0577-65261996 Email: valia@chinahuilida.com info@chinahuilida.com Skype: valia525 QQ: 13094185
