铝合金标枪投掷弧的作用:运动员投掷标枪的限制线(不得越过亠),扬子文体/专业铝合金标枪投掷弧生产商
,泰州市扬子文体装备厂,扬子文体,也是运动员丈量成绩的标志线。
 标枪的投掷弧半径8米。请观看视频&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp
 铝合金标枪投掷弧的作用:运动员投掷标枪的限制线(不得越过丬),也是运动员丈量成绩的标志线。
 标枪的投掷弧半径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
 铝合金标枪投掷弧的作用:运动员投掷标枪的限制线(不得越过),也是运动员丈量成绩的标志线。
 标枪的投掷弧半径8米。请观看视频&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
扬子文体/专业铝合金标枪投掷弧生产商