MHYV矿用信号线 4*2*7/0....
MHYV1*4*7/0.28矿用信号...
屏蔽电缆MHYVP1*4*7/0.3...
MHYVP 1*4*7/0.38煤矿...
矿用防爆信号电缆MHYAV 20*2...
MHYVR矿用瓦斯监测电缆10*2*...