三类通信电缆-5对,10对,20对;通信电缆-HYA电缆|HYA23电缆|HYA22电缆|HYA53电缆|室外电话线HYA53HYA53钢塑复合带铠装通信电缆;HYA|地面通信电缆|地面通信线缆HYA通信电缆|通讯电缆|电话电缆|音频电缆|市话电缆|指令电话线HZPYVHZPVY音频电缆ZRC-HYA；ZRC-HYA53；WDZ-HYA国标产品-音频电缆HYA、HYAC、HYAT、HYA53、HYAT53、HYV、HYA23hya53直埋通信电缆;音频电缆音频电缆|市话电缆;HYAHYAT53HYA23HYAT53充油通信电缆HYATHYAT23HYAT53油缆电缆-HYATHYAT23HYAT53阻燃充油通信电缆ZRC-HYAT;WDZ-HYAT;ZR-HYAT53WDZ-HYA53；ZR-HYA23通信电缆型号：HYA;HYA22;HYA23;HYA53;ZRC-HYA;ZRC-HYA53;WDZ-HYA；充油通信电缆：室外充油电缆HYAT埋地话缆;埋地电缆HYAT23HYAT53)