HYA53铠装电话电缆HYA22
直埋市话线HYA53 300*2*0.4
直埋市话线HYA53 500*2*0.4
直埋市话线HYA53 1000*2*0.4
阻燃通信电缆ZR-HYA ZRC-HYA
通信电缆-HYA23-50X2X0.8
HYAT53铠装通信电缆50x2x0.4
HYAT53铠装通信电缆100x2x0.4
HYA大对数通信电缆