The outer hull of the wire has been moulded by rolling with small volume and pretty appearance to insure its enough flexibility and high carrent bearing . it can be installed under the circumstances of over six meters of span 1外壳采用冷轧钢板一次性滚压成型，外型美观，大大增强母线抗弯强度，载荷性能强，适合于6米以上大跨距场所安装。
