| 摘要 |
The method comprises (a) cutting a fiber glass sheet (1) into a trapezoid form of proper size, (b) impregnating the cut piece with synthetic resin soln. (2) contg. colorants, (c) pasting a band (3) for balance on the center of the piece (1), (d) winding the piece (1) lenghtwise onto a glass fiber pipe (4), (e) heatpressing in the cue mold forms (5,6) to solidify synthetic resin, and (f) finishing both ends with surface-grinding for a final product.
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