| 摘要 |
<p>The pre-assembly base (200) has arms with areas (201, 203) which are kept flat in a common plane whilst filament tufts (218) are fused thereonto. The arms are then folded together so as to form a thread (214) from thread components (210) carried by terminal portions (209) of the arms. The thread (214) may then be screwed into a socket of a handle. <IMAGE> <IMAGE></p> |
