Use multiple seizing wires as belt core to raise wire bending fatigue strength greatly, sheathed good weatherproof rubber to have realized maintenance free fuction.

• 用多根细钢丝绳作为带芯,大幅度提高了钢丝绳弯曲疲劳强度。外包耐候性优良的橡胶，实现了免维护功能。