鋁合金標槍投擲弧的作用：運動員投擲標槍的限制線（不得越過亠），揚子文體/專業(yè)鋁合金標槍投擲弧生產(chǎn)商
，泰州市揚子文體裝備廠，揚子文體，也是運動員丈量成績的標志線。
 標槍的投擲弧半徑8米。請觀看視頻&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp

 鋁合金標槍投擲弧的作用：運動員投擲標槍的限制線（不得越過丬），也是運動員丈量成績的標志線。
 標槍的投擲弧半徑8米。&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp

 鋁合金標槍投擲弧的作用：運動員投擲標槍的限制線（不得越過），也是運動員丈量成績的標志線。
 標槍的投擲弧半徑8米。請觀看視頻&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp

揚子文體/專業(yè)鋁合金標槍投擲弧生產(chǎn)商