产品执行标准
·GB/T 1179-2020圆线同心绞架空导线·YBT5004-2012镀锌钢绞线·NB/T 42060-2005钢芯耐热铝合金架空导线·IEC 61089:1991,MOD Round wire concentric lay overhead electrical stranded conductors·BS EN 50189:2000Conductors for overheadlines - Zinc coated steelwires