| 摘要 |
The racket head frame is provided with a predetermined number of recess cuts, each of which is used to receive therein a stringing tube of stringing element of plastic material. The stringing element has two shoulders for use in shielding both stringing tube and the surface of the racket head frame. Two stringing tubes located respectively and correspondingly on the two shoulders are coupled by means of a connection portion, which serves to shield both the string and the side surface of the racket head frame.
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