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machine shops, foundries and contract manufacturers announced today the debut of its springs and wire forms marketplace for national and global companies looking to buy or sell extension springs, industrial, cantilever, compression, torsion spring as well as leaf, coil, specialized volute, helical negator, notional, wave, gas, coiled, constant-force spring and other types at http://www.
Helwig Carbon changed the OEM design and used a constant-force spring, in addition to newly designed carbon slip rings and a bank-of-two brush holder.
Constant-force springs that provide optimum brush pressure.

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