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Piano wire = music wireAfter coiling music wire heat treat spring for 25-30 minutes at 450 degrees or until end of the coil changes color (brown).From a guy that makes springs for a living remember, springs by definition are a mechanical device meaning they are a par that has to perform a function. If that spring is not made correctly then the whole assembly may not work correctly..02,Jesse
Call Blocker / Telemarketer Stopper
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