矿用电话线-山西(太原,原平,长治,大同)
矿用通信电缆-1对,2对,5..
1对,2对,5对,10对,2..
宁夏电缆-矿用通信电缆|矿用..
兰州电缆-矿用通信电缆|矿用..
甘肃电缆-矿用通信电缆|矿用..
矿用电话线-山东(济宁,东营..