HYAHYA5-2400大对数,HYAC直承式铜芯实心聚烯烃绝缘铝塑粘结综合护套市内通信电缆 22 HYA23 HYAT HYAT23 HPVV HYV HYVV HYY HYA53 HYAT53,HYAC-铜芯实心聚烯烃绝缘铝塑粘...