Galvanzied steel wire strand for Ground/Stay/Guy wire,ACSR,MESSAGER Standard: ASTM 475/363, BS443/183, IEC888 SPE: 1X7, 1X19 1. Galvanzied steel wire strand forground wires, steel core for ACSR, Stay wires ,Guy wires, Messengers2. Specification: 1X7, 3.00---12.60MM 1X19, 5.00---19.00MM3. Standard: ASTM-4751X7:ItemSizeSize(mm)QuantityPackageMin. breaking strength of strand,kNElongation(gauge=610mm ...