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Old 2nd January 2023, 07:15 PM
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8_10 Brass Cleaner 8_10 Brass Cleaner is offline
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John

Thanks for the PM, I have been racking my brain.

The place I saw volute springs was in the suspension of WW2 american tanks. Shermans. Grants etc etc.

Not sure how they work in strength or size terms, but worth a look.
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