通讯电缆HYA50*2*0.5
HPVV低频通信配线电缆50*2*0...
矿用通信电缆MHYV-10*2*0....
MHYV-20*2*0.7矿用通信电...
矿用通信电缆MHYBV-20*2*0...
矿用通信电缆MHYBV-30*2*0...