06-04-2015, 10:22 AM
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Lateral-g Supporting Vendor
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Join Date: Mar 2009
Posts: 8,327
Thanks: 475
Thanked 1,472 Times in 1,104 Posts
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They come with the Heavy Duty Coating. What is the Coating? I would have to find out, but they are Made in the USA, so they they don't have any Banned Substances that you can find on Chinese made Springs
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