... .Mainly used in overhead wires,communication cable,hanging,fixing things,bolts,and so on.Advantages: firm Zn-5Al-MM coating,high tensile ... :1*19-7.5~20.0mmTensile strength:1370~1570MPaAl content in the coating:>4.2%Standard:GB/T20492,YB/T179 ,ASTM A475 ...