Id assume hollow shaft, regarding what hes using it for; (passing something through the hollow I think, i cant be more specific than that. Last time i saw this project was late '03)
http://www.eepn.com/Locator/Products...sue/28585.html
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Hypocritical Signature I tried to delete: Procooling: where scientific principles are ignored because big corporations are immune to mistakes and oversights.
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