| 摘要 |
<p>According to the invention, there is provided a method of manufacturing a FRP-made hollow product, which comprises the steps of arranging thermosetting resin-impregnated reinforcing fibers in parallel in the longitudinal direction, passing the arranged reinforcing fibers through an opening defined by a mandrel and a die to obtain a thin-walled hollow hardened blank, and then passing the hollow hardened blank together with synthetic resin-impregnated reinforcing fibers arranged around said blank in the circumferential and longitudinal directions thereof through a different die.</p> |
