| 摘要 |
This invention relates to a string for sports rackets which comprises a core (1), the core being constituted by one or more synthetic polymeric monofilaments, the, or at least one of the monofilaments having a longitudinal bore (2), and, along the length of the bore, one or more openings (3) for the passage of fluid from the bore, the core being covered by a wrapping (9,10) of synthetic polymeric material (FIGS. 7 and 8). |
