| 摘要 |
<p>PURPOSE:To efficiently perform the substrative treatment of the title shaft and to provide the title shaft having light weight, excellent mechanical strength, and improved design by eliminating a substrative work and simplifying the manufacturing process of the title shaft and by providing the title shaft in an externally profound color. CONSTITUTION:For the title shaft having a plurality of fiber-reinforced composite resin layers 101, 102, a substrative layer 1 formed of a substrative prepreg, which layer consists of a reinforced fiber being transparent or substantially white, a color-masking agent being white or in a color except black, and a matrix resin, is provided on the outer most layer of the fiber-reinforced composite resin layers above-mentioned.</p> |
