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Postato il 02/24/2021 : 13:44:30 Carbon fiber rod is made of high-tech composite carbon fiber, which is dipped with vinyl resin and cured at high temperature by pultrusion (or winding). Technical process: A. the glass fiber is impregnated with resin, cured in the high-speed polymerization device integrated with light and......https://www.doshinematerial.com/carbon-fiber-products/carbon-fiber-rod/high-quality-carbon-drill-rod.html